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.

In 1938, a judge, a rabbi, and a Jewish gangster got together and came up with a plan to beat up America’s Nazi sympathizers whenever and wherever they tried to march.

The infamous Pizza Connection trial eventually revealed how the Sicilian Mafia imported more than $1.6 billion worth of heroin into the U.S. throughout the early 1980s by using seemingly normal pizza parlors across the country as wholesale distributors.

In the 1980s, Willy Falcon and Sal Magluta were the most invincible drug lords in South Florida — but their reign wouldn't last forever.

Frank Cullotta was a ruthless burglar and hitman who eventually turned informant on his partner in Las Vegas — and later advised Martin Scorsese on the set of Casino.

In the 1980s, Philadelphia mob boss Nicky Scarfo presided over one of the deadliest periods in Mafia history and ordered the murders of nearly 30 members of his own organization.

Neil McCauley was a career criminal who'd spent half his life in prison before organizing a series of heists in Chicago in the 1960s that led to his death in a street shootout with police.