Aino Nykopp-Koski

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Aino Nykopp-Koski
Aino Kerttu Annikki Nykopp
Conviction(s)5 murders,
5 attempted murders,
3 aggravated assaults,
4 thefts,
2 drug possessions
Criminal penaltyLifetime
Span of crimes
Date apprehended
March 2009

Aino Nykopp-Koski is a Finnish serial killer. She worked as a nurse and was found guilty of killing five patients and the attempted murder of five more. No motive was established for the murders.[1]


Between 2004 and 2009 Nykopp-Koski worked at a range of hospitals, care homes and patients' homes. There she killed five elderly patients using sedatives and opiates. She was apprehended in March 2009.[1]

Nykopp-Koski was tried in Helsinki District Court in December 2010 and pleaded not-guilty, though the court convicted her. She was sentenced to life in prison (minimum of 12 years before likely pardon). During the mental health assessment psychiatrists found out that Nykopp-Koski is psychopathic and has an antisocial personality disorder, but she was deemed culpable for her actions.[1] The sentence was upheld by Helsinki Court of Appeals in March 2012.[2] Supreme Court of Finland dismissed her leave to appeal in November 2012.[3]

Similar cases in Finland[edit]

In March 2010 Katariina Pantila, another Finnish nurse, was found dead in her prison cell. She had been convicted of the murder of a patient and the attempted murder of a baby in 2007.[4]

See also[edit]

Other nurses convicted of murdering patients:


External links[edit]