Charles Manson
While young Manson might have looked innocent, he was quite the opposite. He committed strings of burglaries at convenience and grocery stores at the age of 13. Later, he was convicted of several murders on his own, as well as murders carried out by his followers through the joint-responsibility rule.
Jeffrey Lionel Dahmer
Dahmer became a serial killer and sex offender, committing rape, murder and dismemberment of 17 men and boys. His later murders also involved necrophilia and cannibalism.
Saddam Hussein
This distraught-looking young boy eventually brought despair on an entire country. Saddam formally rose to power as the fifth President of Iraq in 1979. The brutality of his dictatorship was challenged in 2003 when the United States and the UK invaded Iraq to depose Saddam for possessing weapons of mass destruction and having ties to al-Qaeda.
Heinrich Himmler
He was the commander of the SS Schutzstaffel and head of the concentration camps. He was the mastermind who gassed inmates with toxic poison in chambers and systematically worked and starved them to death. He is also responsible for the genocide of millions.
