Anatolij Sliwko

Anatolij Sliwko, also known as Wilkołak, was a Polish serial killer. He was convicted of murdering seven young men who trusted him. Sliwko's crimes were characterized by their brutality and sadism. He was sentenced to life imprisonment and died in prison in 2009. Sliwko's case drew widespread attention in Poland and was the subject of several documentaries and books.