Samuel "Mad Sam" DeStefano was one of the Mafia's fiercest loan sharks — and he was so deranged that the Chicago Outfit refused to initiate him as an official member.

In 2002, Ward Weaver III went on TV and proclaimed his innocence in the disappearances of Ashley Pond and Miranda Gaddis — while standing on the very spot where he’d buried Pond.

Peter Chiodo was a high-ranking New York gangster in the late 1980s, until he defied his bosses — then survived their attempt on his life because his weight protected him from the bullets.

Operating in Hell's Kitchen in the 1970s and '80s, Francis "Mickey" Featherstone was one of the most feared hitmen in the Irish American mob.

Toolbox Killers Lawrence Bittaker and Roy Norris killed five teenage girls in just five months — and recorded some of their horrific torture and murder sessions for their own amusement.

Steven Pennell became known as the "Route 40 Killer" after he abducted, tortured, and murdered at least three women between 1987 and 1988.

After tormenting the family of a girl he was stalking by secretly living inside their walls for several weeks, Daniel LaPlante committed his worst crime yet when he broke into the home of Priscilla Gustafson in December 1987.

Tony Costa was convicted of brutally murdering and dismembering Patricia Walsh and Mary Anne Wysocki in 1969, but he's suspected of killing as many as eight women over a three-year period.

In December 2021, 23-year-old Lauren Smith-Fields was found dead in her Bridgeport, Connecticut apartment after a date with a man she'd just met on Bumble — and her family says the police botched the investigation.

Terry Rasmussen was the serial killer behind the "Bear Brook Murders" in New Hampshire — and his many aliases ensured he wasn't found out until after he died in prison in 2010.