When expectant mother Deanna Ballman is found murdered, online clues lead police to every patient’s worst nightmare: a doctor who uses his skills to kill rather than cure.

It looked like Sarah and Carl Collier were just hoping to give their granddaughter Holly Harvey a better life.

When mother Jo Ann Bain and her three daughters disappear; detectives unravel a tale of troubled love, obsession and cold-blooded killing.

When elderly Vietnam vet Patrick Fleming is stabbed to death, detectives expose a crime ring led by a Gypsy con woman and killer.

The discovery of 26-year-old Dan Sorenson’s headless body launches an investigation with countless twists and turns. One of the teen killers confesses, saying his friend was the mastermind behind the stabbing, but can his word be trusted?

Chris Hansen interviews a convicted killer in order to understand why he and his brother kidnapped an 84-year-old Geraldine Davidson, drove around and showed her off as their "prize" before assaulting her and tossing her into a river where she drowned to death.

In California’s Valley, 20-year-old Megan Barroso is heading home from a July 4th party when she disappears. Her car is found stranded on Highway 23 - riddled by bullets from an AK-47. Chris Hansen unfolds the harrowing tale of a truly evil predator.

In Longmont, CO, Tammy Tatum is brutally murdered right near her one-year-old daughter, Sadie. Now 24, Sadie reveals to Chris Hansen the shocking truth... that the killer was someone she knew her entire life.

The brutal shooting of Stephen Perret looks like a mob hit. Police have little evidence, but soon discover Stephen made a call just before he was murdered. Chris tracks down the person Stephen called... who reveals the identity of his killer.

The discovery of 26-year-old Dan Sorenson’s headless body launches an investigation with countless twists and turns. One of the teen killers confesses, saying his friend was the mastermind behind the stabbing, but can his word be trusted?

Chris Hansen interviews a convicted killer in order to understand why he and his brother kidnapped an 84-year-old Geraldine Davidson, drove around and showed her off as their "prize" before assaulting her and tossing her into a river where she drowned to death.

Aphrodite Jones sits downs with the man who Orange County Prosecutors say is one of the most diabolical killers they have ever seen. See the web of deceit that convicted murderer Skylar DeLeon weaves.

Aphrodite meets with expert Criminal Psychologist Dr. Louis Schlesinger, who talks about narcissism, sexual obsession and the other personality disorders that serial killer Rodney Alcala exhibited.

Close friend and film director Ray Martino describes the Anna Nicole few ever got to see.

A murder victim's daughter makes a shocking discovery about her father's girlfriend.

Aphrodite Jones walks through the murder of Melissa Britt Lewis, a partner in Scott Rothstein's firm.

Long-time Ramsey investigator John San Agustin shares shocking evidence that TWO intruders might be responsible for the death of JonBenet.

After his death, Steve McNair's wife Michele cut his mother out of her grandchildren's life, and took her home from her.

Three insiders, Gerlene Gibson, Ray Martino and Larry Birkhead tell the shocking story of their reaction the moment they learned of Anna Nicole Smith's death.

Could Steve McNair's mistress Sahel Kazemi really be in love with him? Or was she just a gold digger?

Aphrodite meets with Dr. James Pennebaker, a context analyst as he reviews the ransom note that was called into question during the initial investigation into the murder of Jon Benet Ramsey.

Aphrodite is going to untangle a web of lies, and talk to Eric Naposki, the man accused of pulling the trigger - who still insists he's the victim of the gold-digging Nanette.

Feeling the pressure coming his way, Scott Rothstein has one of his employees begin to shred the evidence of his crimes.

When millionaire Bill McLaughlin landed himself a sexy live-in girlfriend, he thought life would get better. But his girlfriend and her lover had other ideas. Aphrodite follows a roller-coaster ride through a sensational crime of greed, lust and ...

Rodney Alcala's first known victim, who narrowly escaped death after an assault in 1968 when she was eight years old, expresses her outrage at a justice system that failed her and Alcala's other victims.