Palle Mogens Fogde Sørensen (born March 26, 1927, in Copenhagen, Denmark), is a former small-time criminal who shot and killed four police officers in September 1965 while escaping in a stolen car.
After a huge search operation he was apprehended three days later and sentenced to life imprisonment. Despite being a peaceful prisoner, Sørensen was considered the most dangerous convict in Denmark for many years. He was granted parole after 32 years and eight months in prison — the longest time anyone has served in a Danish prison in modern history.
Palle Sørensen's crime eventually led to Danish police arming themselves with guns.