Season 5

In a small town outside Atlanta, young mother Heather Strube is gunned down in a Target parking lot in broad daylight while stunned eyewitnesses search for cover, and with her 18-month-old son just a few feet away. Police have little to go on beyond a bizarre description of the brazen killer and the surveillance video of him walking away from the crime scene. After a painstaking and difficult investigation, they come up with an incredible and surprising suspect.

Margo Prade, a prominent doctor in Akron, OH, is discovered shot and killed in her van parked outside her office. Margo was one of their own, married for 17 years to a highly respected captain in the Akron Police Department. Investigators quickly discover a videotape that documents the murder, but the most important clue is a bizarre bite mark left behind by the killer.

Cathy and Lyndel Robertson were both shot multiple times while asleep in their bedroom. Cathy died at the scene, but somehow, Lyndel survived, despite being shot in the face and chest. A mysterious fingerprint on a box of ammunition could be the key to unlocking the mystery behind the brutal crime.

18-year-old Lisa Kimmell was driving home for the Easter holiday when she vanished somewhere on the 600 miles of desolate highway between Denver, CO, and Billings, MT. Days later, her body is found, murdered. The case spans 14 years and dozens of suspects are examined, including the man in charge of the investigation, before reaching its shocking conclusion.

Norma Ates' body was discovered when firefighters responded to a fire at her house; she was shot and killed in her own bedroom. After years of searching, police finally find two mysterious strangers who were seen outside the house just before the crime took place; their story will help solve the mystery and convict the most unlikely of suspects.

When Fran Smith mysteriously disappears her sister and daughter mount their own investigation... What they uncover sends police on a cross country man hunt for a killer.

When a pregnant mother of two is found shot to death in her fire-ravaged home, police find there are more suspects than clues.

When a nun is found strangled and stabbed to death on the day before Easter, investigators are forced to look behind church walls in search of a killer.

After a teenager's partially nude body is discovered brutally beaten in a desolate cemetery, Investigators and her family face an emotional journey to the truth behind her murder.

A mother and two daughters are discovered floating in Tampa Bay after a brutal triple homicide. Police must rely on a victim who survived a similar attack to bring the killer to justice.

When a beautiful young graduate student is found stabbed to death, detectives must determine if the murder was a crime of passion or a brutal attack by a violent intruder.

In order to solve the murder of a talented young art student, investigators must first unravel a bizarre web of jealousy and deceit.

A beautiful grad student is found murdered inside a yoga apparel store. On the surface it appeared she was the victim of a botched robbery, but remarkable police work revealed a far more sinister plot.