15 Most Prolific Serial Killers of All Time

15.Serhiy Tkach

Nickname: Pologovsky Maniac

Confirmed victims: 36

Suspected victims: 80–100

Country: Ukraine

Status: in prison, life sentence

Serhiy Tkach was a police investigator. His favorite victims were girls aged 8 to 18, whom he strangled. He performed sexual acts on their dead bodies. Tkach was convicted of 36 counts of murder in 2008 to life imprisonment, although he claimed that he killed 100 people. Before he was apprehended, 9 people were wrongfully sentenced to prison for the act he committed.