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Hinterkaifeck five days after the attack
|Location||Modern-day Waidhofen, Bavaria, Germany|
|Date||31 March 1922|
|Home invasion, mass murder|
Hinterkaifeck was a small farmstead situated between the Bavarian towns of Ingolstadt and Schrobenhausen, approximately 70 kilometres (43 mi) north of Munich. On the evening of 31 March 1922, the six inhabitants of the farm were killed with a mattock. The murders remain unsolved.
The six victims were parents Andreas Gruber (63) and Cäzilia (72); their widowed daughter Viktoria Gabriel (35); Viktoria's children, Cäzilia (7) and Josef (2); and the maid, Maria Baumgartner (44).
Hinterkaifeck was never an official place name. The name was used for the remote farmstead of the hamlet of Kaifeck, located nearly 1 kilometre (0.62 mi) north of the main part of Kaifeck and hidden in the woods (the prefix Hinter, part of many German place names, means behind), part of the town of Wangen, which was incorporated into Waidhofen in 1971.
- 1 History
- 2 Crime
- 3 Acts
- 4 Investigation
- 5 Suspects
- 6 Funeral services and commemoration
- 7 Inconsistencies in the case and investigation failures
- 8 Aftermath
- 9 In popular culture
- 10 References
- 11 Bibliography
- 12 External links
Built around 1863, the yard (previously the area was open farmland) was completely demolished less than a year after the murders. Hinterkaifeck was officially never a separate district with this name, but only an unofficial house name, and did not belong to the eponymous place Kaifeck (about a kilometre south), but to the village Gröbern as house number 27 ½ of the then municipality Wangen (before the later introduction of street names in Gröbern and Wangen). Since later no new property was built on the site, the house name went under and is today only a historical name. The eponymous Kaifeck is a Einödhof, which is located just over one kilometer south of the "murder farm" on the municipal road to Schrobenhausen; the former court area of Hinterkaifeck is today an agricultural area.
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A few days prior to the crime, farmer Andreas Gruber told neighbors about discovering footprints in the snow leading from the edge of the forest to the farm, but none leading back. He also spoke about hearing footsteps in the attic and finding an unfamiliar newspaper on the farm. Furthermore, the house keys went missing several days before the murders. None of this was reported to the police prior to the attack.
Six months earlier, the previous maid had left the farm, claiming that it was haunted; the new maid, Maria Baumgartner, arrived on the farm on the day of the attack and was killed hours later.
Exactly what happened on that Friday evening cannot be said for certain. It is believed that the older couple, as well as their daughter Viktoria, and her daughter, Cäzilia, were all lured into the barn one by one, where they were killed. The perpetrator(s) then went into the house where they killed two‑year‑old Josef, who was sleeping in his cot in his mother's bedroom, as well as the maid, Maria Baumgartner, in her bedchamber.
On the following Tuesday, 4 April, neighbors came to the farmstead because none of its inhabitants had been seen for a few days. The postman had noticed that the post from the previous Saturday was still where he had left it. Furthermore, young Cäzilia had neither turned up for school on Monday nor had she been there on Saturday.
Events before the act
Strange occurrences in and around Hinterkaifeck piled up already sometime before the fact: Thus a Munich newspaper was found in the middle of March 1922 near Hinterkaifeck, which was not common in the region. The Austragsbauer Andreas Gruber initially believed that the postman had lost the newspaper, but this was not the case, since no one in the vicinity had subscribed to this newspaper. A few days before the Tatnacht discovered Gruber also in the snow tracks to HofHinterkaifeck led, but not away from him again. Likewise, the inhabitants of the wasteland missed a front door key. In addition, someone had broken the padlock at the engine hut of the yard and untied a cow in the stable. In addition, the Hinterkaifecker noticed that the property from the forest was repeatedly observed by a man with a mustache. During the night they heard footsteps in the attic above their dormitories, but Andreas Gruber found no one as he searched the building. Although he told several people about these alleged observations, he refused to accept help from outsiders (neighbors/police). According to a school friend of the seven-year Cäzilia Gabriel is said to have also reported that her mother Viktoria had fled the court the night before the act after a violent quarrel and only hours later had been found in the forest. 33 years later, the school friend then claimed that not Victoria Gabriel, but Cäzilia Gruber had fled.
Tatnight from March 31 to April 1, 1922
On the afternoon of March 31, 1922, a Friday, the new maid Maria Baumgartner arrived at the farm. Her sister, who had escorted her there and left the farm after a short stay, was most likely the last person to see the inhabitants alive. A few hours later, the six murders were committed. The exact facts could not be reconstructed later beyond doubt. Due to the later finding situation of the victims, it is certain that in the late evening Viktoria Gabriel, Cäzilia and Andreas Gruber, as well as seven-year-old Cäzilia Gabriel, will be in succession (presumably in the order mentioned) in the immediate vicinity of the transitional door from the stable to the barn with a on the spot by the perpetrator or the perpetrators found Reuthaue, which belonged to the yard inventory, were killed. To this day, it is still unclear why and how often the first four victims went to this part of the estate. Later experiments showed that screams from the barn could not be heard either in the Magdkammer or in the living room or bedroom. Through an autopsy was proven later that the seven-year Cäzilia after she had been taken of the skull, was still alive at least two hours. From the barn, the perpetrator penetrated through the stable into the living quarters, where - with the same murder weapon - probably first the maid Maria Baumgartner in the Magdkammer and finally the two-year-old Josef in his bassinetin his mother's bedroom were killed.
Discovery of the fact
Between the time of the offense and the discovery of the deed four days later, the perpetrator or the perpetrators must have stayed in the house, as the livestock was supplied (soaked, milked). In addition, the police discovered that the entire bread supply had been used up and meat from the pantry had been freshly cut.
On April 1, coffee sellers Hans and Eduard Schirovsky arrived in Hinterkaifeck to place an order. When no one responded to the knock on the door and the window, they walked around the yard but found no one. They only noticed that the gate to the machine house was open. Then they went on. lacked On 1 and on 3 and 4 April Cäzilia Gabriel excuse in school. also noticed that the residents of the remote area on April 2 not (Sunday worship Parish Church of cleaning in Waidhofen, a walk of more than three kilometers of the bridge over the pair passed) participation. On Monday, April 3, the postman Josef Mayer, when he came to Hinterkaifeck, noticed that Saturday's mail was still there where he had left it, and apparently nobody was in the yard. Assembler Albert Hofner came to Hinterkaifeck on 4 April to repair the engine of the food chopper. He said he had not met and heard anyone except the roaring of the cows and the barking of the dog. After an hour of waiting, he started to repair the engine and was ready in about 4.5 hours. Then he noticed that the barn door was open. Whether the barn was already open at his arrival or later, he could not specify. Hofner looked into the barn but did not go inside. In Gröbern he met the daughters of the village guide Lorenz Schlittenbauer and told them that the repairs in Hinterkaifeck would be done. Hofner also told Georg Greger, the mayor of Wangen, about the ghostly emptiness on Hinterkaifeck. Schlittenbauer then sent his two sons Johann and Josef to Hinterkaifeck to see to it. When they reported that they did not see anyone, Schlittenbauer invaded the building complex on the same day with Michael Pöll and Jakob Sigl, where they discovered the mostly covered bodies.
Inspector Georg Reingruber and his colleagues from the Munich Police Department investigated the killings. More than 100 suspects have been questioned throughout the years, with the most recent questioning taking place in 1986. None of the questioning yielded any conclusive results.
The day after the discovery of the bodies, court physician Johann Baptist Aumüller performed the autopsies in the barn. It was established that a mattock was the most likely murder weapon. Evidence showed that the younger Cäzilia had been alive for several hours after the assault – she had torn her hair out in tufts while lying in the straw, next to the bodies of her grandparents and her mother. The skulls of the corpses were sent to Munich, where clairvoyants examined them, to no avail. The heads were later lost, possibly destroyed in the Allied bombings in World War II.
The police first suspected the motive to be robbery, and they interrogated traveling craftsmen, vagrants, and several inhabitants from the surrounding villages. This theory was abandoned when a large amount of money was found in the house. It is believed that the perpetrator(s) remained at the farm for several days – someone had fed the cattle and eaten food in the kitchen, and the neighbours saw smoke from the chimney during the weekend – and would have easily found the money if robbery had been the intention.
The death of Karl Gabriel, Viktoria's husband (who had been reported killed in the French trenches in World War I), was called into question. His body had never been found. However, most of his fellow soldiers reported seeing him die, and the police believed their reports.
Two-year-old Josef was rumoured to be the son of Viktoria and her father Andreas, who had an incestuous relationship that was documented in court and known in the village. A neighboring farmer named Lorenz Schlittenbauer publicly claimed to be Josef's father and paid alimony to Viktoria and Andreas. Shortly before the murders, Viktoria was preparing to sue Schlittenbauer, who by then had a wife and a baby, for alimony. Schlittenbauer was part of the original search party that found the corpses, and he disturbed the bodies before the police arrived. The police questioned Schlittenbauer extensively but were unable to find concrete evidence linking him to the crime.
In 2007, the students of the Polizeifachhochschule (Police Academy) in Fürstenfeldbruck examined the case using modern criminal investigation techniques. They concluded that it is impossible to definitively solve the crime after so much time had passed. The primitive investigation techniques available at the time of the murders yielded little evidence, and in the decades since the murders, evidence has been lost and suspects have since died. Despite these setbacks, the students did establish a prime suspect but did not name the suspect out of respect for still‑living relatives.
Karl Gabriel The death of the husband of the young farmer, Karl Gabriel, who fell in December 1914 during the First World War, was called into question. This is said to have learned that after the daughter Gabriel (Cäzilia) Victoria Gabriel had an illegitimate child (Josef), possibly with her own father (see: incest). Then he is said to have killed the entire family to seek revenge. Although soldiers from his regiment testified to his death, this theory gained new nourishment over the years, after people repeatedly reported that they had met Gabriel or could confirm that he had exchanged his identity with that of a fallen comrade.
After the end of the Second World WarIndependently of each other, war remnants from the Schrobenhausen region who were released prematurely from Soviet captivity claimed that they had been sent home by a Bavarian-speaking Soviet officer who claimed to be the murderer of Hinterkaifeck. Some of these statements were later revised by the returnees themselves. Whether it was about invented stories or truthful statements can no longer be proven beyond doubt. Even if the allegations were correct, the Russian did not necessarily have to be Karl Gabriel, although some of the witnesses he allegedly met shortly before and after the murder testified that he wanted to go to Russia drop.
Lorenz Schlittenbauer had in 1918, shortly after the death of his first wife, a relationship with Victoria Gabriel and was also considered a possible father of her son Josef. He was suspected - even by the population - as the perpetrator because he is said to have betrayed himself by some acts and allusions to the murders. For example, when the bodies were found, a gate was broken because all the doors on the courtyard were closed. After finding the dead, his two companions left the stable shocked, while Schlittenbauer went alone into the house, in which he seemed to know well. He then - clearly audible to the other witnesses - unlocked the front door with the key from the inside. This only key was missing from the victims just before the act. But sled builder said he had stuck in the door. About that, Whether there was a rope in the barn at the time of the find that an offender could have used to escape, there were contradictory statements. The spokesman Johann Konrad Wiessner wrote in his report of a finger-thick rope. A rope was also mentioned by Wenzeslaus Bley and Lorenz Schlittenbauer. Jakob Sigl testified that he saw no rope on the day of the discovery. But when the court commission inspected the scene, he realized that suddenly a rope was hanging from the attic. Michael Pöll is said to have seen no rope on the day of the discovery.
Even years later Schlittenbauer was due to strange comments (as he is at the local Stammtisch in speculation about the case has occasionally spoken by the offender in the first person form) repeatedly brought into connection with the act. In the files was also an encounter of the then village teacher Hans Yblagger with sled builders on the remains of the demolished Hof Hinterkaifeck in 1925. The young teacher surprised him over the still existing basement entrance bowed and was amazed by his very frightful and confused reaction when he addressed him. Schlittenbauer then told of an alleged attempt by the perpetrator to bury the bodies at the place of their discovery, but this was not possible due to the nature of the ground.
Already on April 9, 1922, let Detective Inspector General George Reingruber the search for Adolf Gump, Wilhelm Dreßel, Wilhelm Musweiler alias Weiland and the former detective Friedrich N. alias Fischer tender. All four were said to have invaded the Free Corps Oberland in Upper Silesia and participated in the murder of nine peasants. Reingruber could not rule out that Adolf Gump was also involved in the murders in Hinterkaifeck, which is why he instructed the corresponding gendarmerie stations to ask in a possible arrest this for his alibi of 30 and 31 March and 1 April 1922.
In 1951 prosecutor Andreas Popp investigated Adolf's brother Anton Gump for suspecting that the two brothers had committed the murders on Hinterkaifeck. The suspicion was based on the allegation of the sister of the two. Kreszentia Mayer claimed on the deathbed opposite the priest Anton Hauber that her two brothers Adolf and Anton had committed the murders. As a result, Anton Gump was remanded, Adolf had already died in 1944. After a short time, however, Anton was dismissed again, and in 1954, the case against him was finally discontinued because he could not be proven to have participated in the crime.
The brothers Karl and Andreas S. from Sattelberg
In 1971, a woman named Therese T. wrote a letter citing an event in her youth: At the age of twelve, she witnessed when her mother received a visit from the mother of the brothers Karl and Andreas S. This claimed that her sons were the two murderers of Hinterkaifeck. Interesting was the fact that the mother said the sentence "Andreas regretted that he lost his penknife" in the course of the conversation. In fact, when the farm was demolished in 1923, a pocket knife was found that could not be clearly assigned to anyone and whose existence was generally unknown. However, the knife could have belonged to one of the murder victims. Also, this track was followed without result. Kreszenz Rieger, the former maid of Hinterkaifeck, was sure she had already seen the penknife in the yard during her service.
Peter Weber is named a suspect by Josef Betz. Both worked in the winter of 1919/1920 as a laborer and shared a chamber. According to Betz Weber spoke in the time of a remote court, namely Hinterkaifeck. Weber also knew the conditions in Hinterkaifeck. So he said that only one old couple lived there with their daughter and two children. Besides, he probably knew about the incest between Gruber and his daughter. Betz testified in a hearing that Weber had suggested killing the old man to get the gold. When Betz did not respond to the offer, Weber stopped talking about it.
Gebrüder Bichler and Georg Siegl
The former maid Kreszenz Rieger worked from November 1920 to about September 1921 on Hinterkaifeck. She suspected the brothers Anton and Karl Bichler, to have committed the murder. Anton Bichler is said to have helped with the potato harvest on Hinterkaifeck and therefore knew the premises. Anton Bichler is said to have talked to her often about the Gruber and Gabriel family. From an old lady, she got with, that Anton should have said that the quays belong all killed. The maid also emphasized in her interrogation that the farm dog, who barked at everyone, never barked at Anton. In addition, she reported on a meeting with a stranger who stood at her window at night and went for a word exchange again. The maid believed that it was Karl Bichler, the brother of Anton. She also stated that Anton and Karl Bichler could have committed the murder together with Georg Siegl. Georg Siegl worked on Hinterkaifeck for a while and is said to have known about the Kaifecker's fortune. It should Siegl in early November 1920, while the Gruber couple and Viktoria Gabriel worked on the field, have committed an intrusion on Hinterkaifeck. He was said to have climbed into the house through an open window and stolen smoked meat, eggs, bread and clothes. The quays would have seen only how Siegl fled into the forest. Despite these events, he was recruited for a few days in September 1921 as a servant. Georg Siegl denied the theft in an interrogation and accused Josef Hartl from Waidhofen indeed. In a later interrogation, he also testified that he had carved the stem of Reuthaue (instrumentalities of murder) even when he was working as a laborer on Hinterkaifeck. The Reuthaue would have always been kept in the barn passage.
The Thaler brothers were also suspected, according to a statement by the former maid Kreszenz Rieger. The brothers Thaler had already committed several minor burglaries in the area before the crime. The potato harvest 1921 is said to have occurred several unusual incidents. Josef Thaler is said to have often stood at her window at night. When she opened the window once, Josef Thaler is said to have questioned her about the Gruber and Gabriel family, but she gave no answer to his questions. In conversation, Josef Thaler claimed to know which quayman was sleeping in which room. He also stated that the quayside had a lot of money. The money would be hidden during the day in a different place than at night. After about 30 minutes went Josef Thaler. The maid noticed that there was another unknown person nearby. According to her statement, Josef Thaler and the stranger looked at the machine house and turned their eyes upwards. The maid believed that the unknown was Andrew, the brother of Joseph. At the same time, the door of the Magdkammer around midnight is said to have opened again and again. Out of fear, Kreszenz Rieger then quit after four weeks.
Between the father, Andreas Gruber and his daughter Viktoria existed an incestuous relationship at least since the age of 16 of the daughter. Therefore, both were sentenced in 1915 - the father to a year in prison and the daughter to a month in prison. Once the two were caught by a maid in the hay.
There are also rumors that 1919 born illegitimate Joseph was not begotten by Lorenz Schlittenbauer, but by Andreas Gruber. Andreas Gruber is also said to have tried to prevent a marriage between the two widowed, Viktoria Gabriel and Lorenz Schlittenbauer. Then Schlittenbauer denied paternity and showed Andreas Gruber in September 1919 because of bloodshed. Since Andreas Gruber was already convicted, he was in custody taken. Shortly after sledger took back his allegations and recognized the paternity. Sometime later, however, he refused again and reiterated his previous allegations. Also because of these contradictory statements, there was finally no further conviction, Gruber had previously been released from custody.
Result of the investigation
Despite repeated arrests, no offender has been found until today, the files were closed in 1955. Nevertheless, the last interrogations took place in 1986, and Kriminalhauptkommissar Konrad Müller still determined today - retired.
Funeral services and commemoration
The dead are without the skull in the cemetery Waidhofen buried, a memorial stone was erected at the grave. The skulls of the dead were last in a justice building in Augsburg and were destroyed in a bomb attack during the Second World War. The farm was already demolished in 1923, and today there is only one martyr left in the area.
Inconsistencies in the case and investigation failures
In the inspection record of the court commission, Schrobenhausen was noted that the victims were probably lured by restlessness in the stable (roaring, untangundenes cattle) in the stable. However, an attempt revealed that at least human screams from the barn (scene or site of Andreas and Cäzilia Gruber and Victoria and Cäzilia Gabriel) were not heard in the living area. This raises the question of whether the Hinterkaifecker really were lured into the barn as described above or in any other unknown way.
The exact sequence of events could not be clarified without a doubt. There were only five pictures taken of the crime scene: two with the bodies in the barn, one of the dead maids in her chamber, one of Josef's bassinet in Victoria's bedroom, and an outside view from the yard. Dactyloscopic traces were not secured. A Tatrekonstruktion based on the finding situation revealed that Viktoria Gabriel was probably the first murder victim. In the barn then probably Cäzilia Gruber, then her husband Andreas Gruber and finally Cäzilia Gabriel were killed. In the house, the maid must have been killed first, then Josef. All bodies had severe head injuries, with Victoria Gabriel should also Würgemale been found on the neck, the source situation is not unambiguous.
In addition, the assumption was cast doubt that the perpetrator or those had already been in the house before the act. Some of the evidence - such as the shifted roof tiles and the hollows in the hay - was later interpreted as a love hiding place of the incest relationship between Andreas Gruber and Viktoria Gabriel. This would also explain why the hollows and bricks were not noticed or mentioned by Andreas Gruber, although he was said to have thoroughly searched the farm several times after having made certain statements.
On the night after the crime (that is, three days before finding the bodies), the artisan Michael Plöckl, who happened to pass by Hinterkaifeck, observed that the oven had been heated by someone unknown to him. The person had then approached him with a flashlight and blinded him, whereupon he hastily continued on his way. Plöckl also noticed that the smoke from the fireplace had a disgusting smell. Neither was this case investigated, nor are any investigations known to determine what had been burned that night in the oven.
On the 1st of April at 3 o'clock in the morning, the farmer and butcher Simon Reißländer, on the way home near Brunnen, wants to see two unknown figures at the edge of the forest. When the strangers saw him, they turned around so that their faces could not be seen. Later, when he heard of the murders in Hinterkaifeck, he thought it possible that the strangers might be in contact with it.
The fitter Albert Hofner was after the crime for several hours for repair work in the yard but was only questioned in 1925, as the police had missed an interrogation immediately after the crime. His statement suggests the suspicion that the offender or the perpetrators during his presence still or in the meantime have been back in the yard. Although he found the entrances to the house locked and did not meet anyone, he was reported to hear dog barks from inside the house. When leaving the farm a few hours later, he noticed that the barking Spitz the Grubers was now tied in front of the still closed front door and the Stadtsor was open (through which he did not step). When the bodies were discovered in the early evening of the same day, the visibly disturbed dog was found with an injured eye by the victims in the barn, whose door was now closed again.
In the middle of May 1927, a stranger was said to have stopped a resident of Waidhofen at midnight. He asked him questions about the murder and then called out that he was the murderer; then he ran into the woods. Who the man was, could not be determined.
The personal environment of the victims has been insufficiently investigated. In the first years, this applies in particular to the new maid Maria Baumgartner. After all, it is remarkable that the murders happened a few hours after their arrival in the yard. It is at least possible that the murder motive is related to her person.
The robbery was often assumed as a motive, although a high amount of money (about 1,800 gold marks ) was found in a closet that was searched by the perpetrators who had probably stayed longer in the house. In addition, the complex and overly brutal acts of assassinations that have wiped out the family, including children, as well as various night-time acts (such as the placement and coverage of corpses or the apparent care taken in trying to keep the murders undetected for as long as possible) are more likely for an emotional relationship.
The murder weapon is also a mystery. The Discovery Report talks about a pickaxe found at the scene, claiming that the sledge maker was in a feeding trough for the cattle. The police specifically mention this hoe in the find report. A year later, when the farm was demolished, a rehab was found in a hiding place in the ground, which was identified as a murder weapon (see above). From the first hoe was then just as well as a supposedly bloody iron, which was also discovered in the demolition of the court, no more speech. The question remains whether the two objects no longer mentioned are further murder weapons or not. If so, that would indicate several perpetrators. That, too, can not be finally clarified.
In the 1970s, when the sacristy of the St. Vitus Church in Hagelstadt was demolished, a death picture of the family was found in a church book, which despises the handwritten notes enviously usuriously, in its entirety, for 1 year of morality, bloodshed, and punishment of God. Those who probably already labeled the picture in the 1920s and how or when it got to the Hagelstadt, which is about 85 kilometers away, are not known.
The six victims are buried in Waidhofen, where there is a memorial in the graveyard. The skulls were never returned from Munich, after having been lost during the chaos of World War II.
The farm was demolished a year after the attacks, in 1923. Close to where the farm was located, there is now a shrine.
In popular culture
There are two films with the name Hinterkaifeck: one by Hans Fegert from 1981, and one by Kurt K. Hieber in 1991.
In 2006, German writer Andrea Maria Schenkel wrote a novel entitled Tannöd where she tells the story of Hinterkaifeck using different names for the locations and people involved. Also the novel The Murdered House, written by French writer Pierre Magnan, is allegedly inspired by this case. In this novel, the youngest victim of the massacre survives and returns to the farm as an adult to investigate the crime.
Munich journalist Peter Leuschner wrote two books with the title Hinterkaifeck: Der Mordfall. Spuren eines mysteriösen Verbrechens. in 1979 and 1997. The second book is an extension of the first book. The title means Hinterkaifeck. The Murder Case. Traces of a mysterious crime. In this book, Leuschner quotes the original police files.
In October 2015, popular podcast Stuff You Missed in History Class covered the HinterKaifeck murders.
In 2016, popular podcast Stuff You Should Know did a show on the events that occurred for their pre-Halloween special.
In 2016, podcast Episode 27 of Lore, titled "On the Farm", covered the events at Hinterkaifeck.
In 2016, Buzzfeed's Unsolved: True Crime covered the case, discussing possible theories of who did it.
In 2017, in episode 7 of the podcast And That's Why We Drink, Christine Schiefer discusses the Hinterkaifeck murders in depth.
In 2017, the last chapter of The Man from the Train, briefly discusses the murders at Hinterkaifeck and the possibility that they might have been committed by the titular serial killer. The authors rate the chances as "more or less a toss-up" but conclude "there's no real reason to believe that it's not him."
In April 2018, in Season 3 Episode 18 of the podcast Botched: A D&D Podcast the Hinterkaifeck murders are briefly mentioned as a comparison to a situation the party finds themselves in.
In the fictional universe of the SCP Foundation, the character of SCP-4666 takes inspiration from the Hinterkaifeck murders.
- Leuschner, Peter (1997): Hinterkaifeck. Spuren eines mysteriösen Verbrechens. p. 76 ff.
- "Inzestuöse Beziehung Viktoria Gabriel / Andreas Gruber". Der Mordfall Hinterkaifeck. Retrieved 4 January 2012.
- Hinter Kaifeck (2009) on IMDb
- 1949-, James, Bill,. The man from the train : the solving of a century-old serial killer mystery. James, Rachel McCarthy, (First Scribner hardcover ed.). New York. ISBN 9781476796253. OCLC 962016034.
- Guido Golla (2016). Hinterkaifeck: Autopsie eines Sechsfachmordes. Norderstedt 2016, ISBN 978-3-741239-53-3.