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

13. Ramadan Abdel Rehim Mansour – 32 Murders

A street gang leader known as the Butcher of Gahrbia, Ramadan Mansour was a ruthless man who raped and murdered over 30 young boys in the span of 7 years in Egypt. It was reported that Ramadan would lure street children into train cars where he would viciously assault and violate them and throw them over the side of the tracks once finished. He was eventually arrested and sentenced to death in 2007 for his crimes and that was the last that was seen of the notorious Butcher of Gharbia.