20/20

A young couple is living a lavish lifestyle in rural West Virginia; when a con unravels their close-knit community, foul play leads to murder; authorities begin the hunt for a killer.

Gabby Petito's parents, in their first network TV interview together, share new information about their daughter's tragic disappearance and death, never-before-seen videos of her van life, and what her newly discovered text messages reveal.

A mother plunges from a cliff in a fatal fall while hiking on her anniversary; for the first time, her daughter speaks out.

After two young women are murdered, their cases go cold for decades until police turn to cutting-edge forensic technology to catch the unlikely killers in both cases.

Two women are shot in their home, one is dead and the other is fighting for her life; police body camera footage and a teen's revelation help unravel the hunt for the killer.

When the wife of a Texas minister is found dead, police rule it suicide; her family suspect foul play and start their own investigation, leading to an unlikely killer.