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When a healthy 31-year-old father of three dies suddenly, an autopsy reveals poisoning by antifreeze.

When a healthy 31-year-old father of three dies suddenly, an autopsy reveals poisoning by antifreeze.

A dancer is murdered in her Virginia home after interviewing a series of suspects, detectives realize the case is much more complicated than previously thought.

When a healthy 31-year-old father of three dies suddenly, an autopsy reveals poisoning by antifreeze.

Police suspect a serial killer when two women and their teenage daughters are murdered in Maryland during the search for clues, it's revealed that a master thief is the key to solving the mystery.

The trial and murder conviction of Jodi Arias and the salacious relationship that ended in tragedy.

When a man claims to have found his wife dead in the bathtub, the woman's daughters suspect there may be more to the story.

A teenager is convicted of encouraging her boyfriend to kill himself exclusive interviews with those on both sides of the case.

When hikers find a 21-year-old UCLA student's body in a Los Angeles-area train tunnel, detectives wonder if Ron's interest in an alternative religion is connected to his murder.

When a man claims to have found his wife dead in the bathtub, the woman's daughters suspect there may be more to the story.

When a U.S. Air Force Airman is shot multiple times inside his garage, a trail of clues leads Las Vegas detectives to a secret love affair and a murderous plan.

A Florida father is determined to find out what happened to his daughter after her fatal fall from a penthouse apartment in Belgium.

After being severely beaten in her own home, a high school girl goes under hypnosis to try to identify her attacker.

A mom's death tests a family's loyalty.

A mom's death tests a family's loyalty.

The case of Johnny Hincapie, whose conviction for the 1990 murder of a Utah tourist in New York -- a case that represented a tipping point in the city's law enforcement -- was overturned after 25 years.

The investigation into a newlywed's murder starts with a widow and ends with a possible serial killer.

When a woman kills the man she suspects of being involved in an attack that left her husband dead and her young son wounded, she claims self-defense.

When a U.S. Air Force Airman is shot multiple times inside his garage, a trail of clues leads Las Vegas detectives to a secret love affair and a murderous plan.

A Florida father is determined to find out what happened to his daughter after her fatal fall from a penthouse apartment in Belgium.

After being severely beaten in her own home, a high school girl goes under hypnosis to try to identify her attacker.