The famed literary and celluloid antagonist was based on a Mexican doctor who murdered his boyfriend in 1959.

Vili Fualaau, who famously had an affair with his teacher when he was a teen, recalls the last months of her life before she died of cancer in July 2020.

The world was riveted to the long-running saga of the American exchange student who was accused of killing her roommate.

More than a century after his untimely demise, there are still rumors and legends about how the author met his end.

The Colorado father killed his family in August 2018 and confessed just days later.

Martin Scorsese's 1990 film about Hill and the mafia comes to a climax during the now-infamous Lufthansa Heist.

These Big Apple-based organizations have weathered bloody insurrections, federal convictions and undercover agents through decades of legal and illicit operations.

Found in the basement of her Colorado home the day after Christmas 1996, the truth behind the 6-year-old girl’s killing remains a mystery to this day.

Lyle and Erik Menendez cited emotional and physical abuse, among other reasons, for the gruesome 1989 killing of their mother and father.

The Italian fashion designer was coming home from a neighborhood walk when a madman appeared out of nowhere and shot him dead on the steps of his beloved Miami Beach mansion.

The notorious robber was killed by a would-be gang member while plotting his next heist.

The true-crime writer spent the last six years of her life chasing down the infamous California serial killer and rapist.

By providing insight into the mind of a serial killer, Bundy aided detectives in capturing Gary Ridgway.

These are the real-life mobsters and events that inspired the books and movies.

These mafia members continue to be household names long after their deaths.

Take a look at photos of these mafia members after their arrests.

Known as the “Gainesville Ripper,” Rolling terrorized the Florida college town during a three-day murderous rampage in late summer 1990.

Learn about the Butcher of Plainfield and how his disturbing life inspired numerous films.

With his last known killing in October 1969, people still know very little about the murderer — including his name.

The life Dennis Rader lived on the outside hid his dark secret, which he was so desperate to reveal by dropping breadcrumbs to the media.

Author Jeff Guinn reveals how even as a child, Manson showed disturbing signs of becoming a serial killer.

The killer's early years featured problematic behavior and hints of the darkness that led to him becoming a serial rapist and murderer.

The lives of these people ended too soon as a result of the cult's California killing spree.

After decades of rumored mob dealings, alleged burial sites and dead-end tips, investigators aren't any closer to cracking one of the country's most notorious unsolved cases.