6. Mao Zedong
This young chap who looks serious enough to set someone ablaze rose to become the leader of China whose acts led to the killing of more than 70 million people. Known as Chairman Mao, this Communist leader abused human rights, starved and executed thousands, and earned the reputation of being one of the worst mass murderers in the world.
7. Heinrich Himmler
Don’t let the sweet innocent looks fool you. This boy grew up to give the human race something to hate. One of Adolf Hitler’s right hand men, Heinrich Himmler was the man behind the Nazi’s infamous concentration camps which saw the deaths of millions.
8. Dr. Josef Mengele
Seeming like an unremarkable kid who’d live a mediocre life, Josef Mengele grew up to prove everyone wrong. Known as one of the most evil people to walk the earth, Dr. Mengele was a physician with the Nazis who conducted unimaginable cruel experiments on the concentration camp victims.
9. Ted Bundy
This rugrat looks like he’s made of sunshine and cookies. But, he shocked the world when he grew up to become one of the most dangerous serial killers in history. He was found guilty of killing at least thirty people in acts that involved rape and necrophilia. He was sentenced to death by the electric chair.
10. Jeffret Dahmer
This sweet boy who enjoyed probably summer siestas and ice cream sadly had a tough childhood thanks to his argumentative parents. The muddled little Jeffrey Dahmer grew up to make history by killing 17 people and indulging in acts like rape, dismemberment, cannibalism, and necrophilia, earning him the reputation of one of the world’s most feared serial killers.