
An in-depth look at the terrifying offenders whose crimes earned them rare life sentences; despite being imprisoned, these inmates go on to torture, kidnap and even kill.

Covered in tattoos, his terrifying appearance makes Jaime Osuna a feared man in the U.S. prison system; awaiting trial, he begins practicing Satanism and attempts to kill a fellow inmate.

Craig Bjork, who killed two women and both of his children, remains a dangerous threat -even behind bars.

While on trial for rape, 33-year-old Brian Nichols goes on a violent rampage that results in three murders.

Thomas Silverstein, a killer and gang leader, was so dangerous that he spent 36 years in solitary confinement.