Lead Masks Case
The Lead Masks Case (Portuguese: Caso das Máscaras de Chumbo) was a series of events which led to the death of two Brazilian electronic technicians, Manoel Pereira da Cruz and Miguel José Viana who had last been seen by their family on August 17, 1966. Their bodies were discovered on August 20, 1966, and the cause of their deaths has never been determined.
On the afternoon of August 20, 1966, a young man was flying a kite on the Morro do Vintém (Vintém Hill) in Niterói, Rio de Janeiro, Brazil, when he came upon the bodies of two deceased males and reported them to the authorities. The Morro do Vintém had difficult terrain, and the police were unable to reach the bodies until the next day. When a small team of police and firefighters arrived, they encountered an odd scene: the bodies rested next to each other, partly covered by grass. Each one wore a formal suit, a lead eye mask, and a waterproof coat. There were no signs of trauma or any evidence of a struggle. Next to the corpses, police found an empty water bottle and a packet containing two wet towels. A small notebook was also identified, on which were written the cryptic instructions, "16:30 estar no local determinado. 18:30 ingerir cápsulas, após efeito proteger metais aguardar sinal mascara" ('16:30 be at the specified location. 18:30 ingest capsules, after the effect protect metals await signal mask').
The two men were identified as Manoel Pereira da Cruz and Miguel José Viana, two electronic technicians from Campos dos Goytacazes, a town several kilometers to the northeast of Rio de Janeiro. Following an investigation, police reconstructed a plausible narrative of the men's last days. On August 17, Cruz and Viana left Campos dos Goytacazes with the stated intent that they needed to purchase some materials for work. The two men then boarded a bus to Niterói, and arrived at 2:30 pm. Evidence shows that the waterproof coats were purchased at a shop there, and one bottle of water from a local bar. Upon being interviewed, the waitress from the bar described Miguel as "very nervous," and noticed he frequently checked his watch. That is the last time they were known to have been seen alive; it is presumed they went directly from the bar to the spot at which they were discovered.
No obvious injuries were discovered at the scene, nor later at the autopsy. A search for toxic substances did not occur. The coroner's office was very busy at the time and, when the autopsy was finally conducted, the internal organs of the two victims were too badly decomposed for reliable testing.
There are multiple theories that have been proposed to explain this case, ranging from foul play to UFOs. One theory revolves around the testimony of a friend of the two men, who claimed that they were members of a group of "scientific spiritualists". The men were apparently attempting to contact extraterrestrials or spirits using psychedelic drugs. Believing that such an encounter would be accompanied by blinding light, the men cut metal masks to shield their eyes and may have died of drug overdoses. This account is corroborated by the esoteric diary entry found at the scene and by mask-making materials and literature concerning spirits found at the men's homes.
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- According to a 2004 TV special: Linha Direta Justiça – Máscaras de Chumbo
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- The lead masks case at Revista Vigília (in Portuguese)