John Wayne Gacy: Defending a Monster

Ten years after the tragic disappearance and mysterious death of three year old Caylee Anthony, her grandparents, George and Cindy Anthony, open up to Elizabeth Vargas about their lives.

Piers Morgan sits down with Bernard Giles, a convicted serial killer who is willing to admit to his heinous crimes, and asks what motivated the man to commit those brutal acts.

Between 1998 and 2005, a wave of murders targeting elderly women hit Mexico City, triggering the hunt for — and capture — of a most unlikely suspect.

A chronicle of the rise and fall of O.J. Simpson, whose high-profile murder trial exposed the extent of American racial tensions, revealing a fractured and divided nation.

Using interviews with expert witnesses, detectives and members of law enforcement, reveals the true story of Wayne Couzens, asks how he was able to hide from scrutiny for so long, and considers the larger problem of misogyny in the police force.

"He was attractive, cultivated, very sensitive, very empathetic". Lawyer Astrid Wagner's first impression when meeting the serial killer Jack Unterweger. As a young law student she had close contact with him: "It was a nice feeling to be needed." On June 28, 1994 Unterweger is convicted for the murder of nine prostitutes. Six hours later, he hangs himself in his cell. Twenty years later, Thema unrolls the incredible story of the woman murderer and asks former friends and other companions how Jack Unterweger influenced their lives.

In 1994, a triple homicide at the Miramar home of a vivacious South Florida bar owner shocked the entire community. Pablo Ibar, son of famed Spanish jai alai player Candido Ibar, is convicted of the crime and sentenced to death. After 16 years on death row, the Florida Supreme Court suspends Pablo’s execution and orders a new trial: Pablo’s last chance. In this docuseries, a swirl of characters, including judges, attorneys, victims’ family members, Pablo’s family, other suspects, detectives, jurors, create an epic tapestry of what it means to be on trial in America.

On October 30, 1975, 15-year old Martha Moxley was found brutally murdered beneath a tree on her own front lawn in the exclusive community of Greenwich, Connecticut. Following her death, the investigation was stalled for 23 years before an individual was arrested and pulled into the limelight: Michael Skakel, who was Martha's neighbor at the time of her death and a cousin to the famous Kennedy fam.

When it comes to serial killers, there aren't many stories more chilling than the one of Fred and Rosemary West. The murderous duo raped, tortured and murdered at least a dozen young British girls between 1967 and 1987 in Gloucestershire, including several of their own daughters. Learn of how two of Britain's most notorious serial killers were able to get away with their crimes for so long, how they hid the victim's remains within the confines of their own home, and how they were eventually taken down.

In 1994, four women were accused, tried, and convicted of the heinous sexual assault of two young girls—as one newscaster puts it, “the modern version of the witchcraft trials.” Twenty years later, the four women have maintained their innocence, insisting that the accusations were entirely fabricated, and borne of homophobic prejudice and a late-’90s mania about covens, cults, and child abuse.

With never-before seen home video, this film recounts the paranoid downward spiral of John E. du Pont and the murder of Olympic wrestler Dave Schultz.