Trevor McDonald and the Killer Nurse

A serial killer taunts police while increasing the body count on live streaming TV.

Elizabeth Vargas takes a fresh look at the most notorious cold case murder in American history. By tracking down new leads and with new DNA tests, this episode takes a deeper dive in hopes of bringing peace to the Ramsey family. Featuring an exclusive interview with John Ramsey, as well as many never-before-seen photos, the documentary also pursues numerous "intruder theories" of the crime. Vargas and retired FBI agent Robert Clark investigate the possibility that the killer may have ties to a group that believed in extra-terrestrial life and the end of the world.

A reluctant serial killer grapples with his base desires and longs for his own death, as a small town Detective closes in on his trail to stop the killing spree while dealing with her own debilitating trauma.

Mortimer Brewster, a newspaper drama critic, playwright, and author known for his diatribes against marriage, suddenly falls in love and gets married; but when he makes a quick trip home to tell his two maiden aunts, he finds out his aunts' hobby - killing lonely old men and burying them in the cellar!

25 years after the verdict in the Jamie Bulger murder trial, we reveal what the jury, public and press never heard, and what his two killers, Thompson and Venables, said during their time in custody from arrest to release.

Clarice Starling is a top student at the FBI's training academy. Jack Crawford wants Clarice to interview Dr. Hannibal Lecter, a brilliant psychiatrist who is also a violent psychopath, serving life behind bars for various acts of murder and cannibalism. Crawford believes that Lecter may have insight into a case and that Starling, as an attractive young woman, may be just the bait to draw him out.

In the late 1940s, a murderous couple known as the 'The Lonely Hearts Killers' kills close to a dozen people. Two detectives try to nab the duo who find their targets via the personals in the paper.

A wealthy New York investment banking executive hides his alternate psychopathic ego from his co-workers and friends as he escalates deeper into his illogical, gratuitous fantasies.

When a madman dubbed 'Scorpio' terrorizes San Francisco, hard-nosed cop, Harry Callahan – famous for his take-no-prisoners approach to law enforcement – is tasked with hunting down the psychopath.

Forensic psychologist and detective Alex Cross travels to North Carolina and teams with escaped kidnap victim Kate McTiernan to hunt down "Casanova," a serial killer who abducts strong-willed women and forces them to submit to his demands. The trail leads to Los Angeles, where the duo discovers that the psychopath may not be working alone.

Lincoln Rhyme was the department's top homicide detective and leading expert in criminal forensics until an injury left him paralyzed, depressed, and incapable of working. But when a gruesome murder in Manhattan leaves detectives baffled, they call on Rhyme to help solve the mystery. Amelia Donaghy, a rookie cop whose quick thinking preserved a gruesome murder scene, is enlisted by Rhyme to be his on-the-scene forensics expert. With Amelia reluctantly acting as Rhyme's able-bodied go-between, the pair piece together cryptic clues the killer leaves behind at the scene of the crime, hoping to catch the grisly serial killer.