Top 15 most terrifying serial killers in history of the world – Their evil deeds will leave you in a big shock! (With Pictures)

12. Anatoly Onoprienko – 52 Murders

Known as The Beast of Ukraine, Anatoly Onoprienko was an orphan from the age of 4 after being given up by his father when his mother died. Once an adult, Anatoly was a routine murderer/thief, going into isolated homes, killing the whole family inside, looting the building, then setting it ablaze once finished. He killed 52 people before being apprehended in 1996. Because of Ukrainian laws, he was not sentenced to death but still died 17 years later in prison due to heart failure. Please remember to always lock your doors at night. SEE ALSO: 10 Most terrifying creatures ever found on earth – You will be shocked to see #1! (With Pictures)