Palle Sørensen
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Palle Sørensen in September 1965, aged 38, while escaping is a stolen car he shot four young police officers in Copenhagen. After a huge search operation he was apprehended the following day and sentenced to life imprisonment. He was released after 33 years in prison — the longest time anyone has served in a Danish prison in modern history.
Palle Sørensen's crime eventually led to Danish police carrying guns, instead of just clubs.
With four police officers dead, and Palle making it out of prison alive, the "score" 4–0 has become an outcry of people fighting the police.