Serial Killer

Samuel Little told investigators last year that he was responsible for about 90 killings nationwide between 1970 and 2005

The inmate was convicted of killing 25 farm workers, including many he'd hired, and burying their bodies in shallow graves on orchards and farms

"With no stab marks or bullet wounds, many of these deaths were not classified as homicides but attributed to drug overdoses, accidents, or natural causes," the FBI said

Samuel Little, 79, began confessing to crimes across the country after he lost an appeal to the life sentences he is serving for strangling 3 women

One of the last interviews with the Milwaukee serial killer Jeffrey Dahmer. After watching, please take a few minutes to understand the current challenges of being a corrections officer, "A letter to the American public: Know the monster if you must – but know the protectors too."

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Samuel Little, 74, appeared almost cheerful as he was found guilty of crimes that will send him to prison for life without chance of parole

Robert Hansen died Thursday at Alaska Regional Hospital after being in declining health for the past year

Agreed to provide information on the additional killings in exchange for a transfer to a federal prison outside Alaska

A convicted serial killer who committed suicide in an Arizona prison last year was likely hoarding antidepressants from a fellow inmate in the months before his death