Sture Ragnar Bergwall (born 26 April 1950), also known as Thomas Quick in 1993–2002, is a Swedish man previously believed to have been a serial killer, having confessed to more than 30 murders while incarcerated in a mental institution for personality disorders. Between 1994 and 2001, Quick was convicted of eight of these murders. However, he withdrew all of his confessions in 2008, as a result of which his murder convictions were quashed, the final one in July 2013, and he was released from hospital. The episode raised issues about how murder convictions could have been obtained on such weak evidence, and has been called the largest miscarriage of justice in Swedish history. Journalists Hannes Råstam and Dan Josefsson published TV documentaries and books about the murder cases; they claim