World's Most Dangerous Prisoners

James Robertson is one of the most feared men in the US prison system. He murdered his cellmate and attacked a correctional officer to get his wish - to be put on death row. 

At the age of 18, Christa Gail Pike became one of the youngest women in the US ever to be sent to death row. Pike, a satanist, murdered of a young woman keeping a piece of her victim's skull as a trophy.

Tyler Davis Bingham started out as a petty criminal but ended up leader of the white supremacist gang, The Aryan Brotherhood. When engaged in a fight, he would never allow anyone to live.

Freddy Geas was a hired hitman for the Italian-American Mafia,and he got away with murder for years. Eventually the mobster did get caught. He allegedly beat the notorious Boston Mob boss Whitey Bulger to death, while behind bars.