#7 – Andrei Chikatilo
Andrei was a Soviet murderer who murdered and mutilated more than 50 children and women in Russia between the late 1970s and 1990.
He confessed that he killed 56 women and children in 1992. The families of Andrei’s victims demanded the local authorities release him so they could kill him by themselves. That never happened. He was executed by shooting in the beginning of 1992.