Killer Instinct with Chris Hansen

A 20-year-old California woman is heading home from a 4th of July when she disappears. Her car is founded stranded on the highway, riddled by bullets from an AK47. Chris Hansen unfolds the harrowing tale of a truly evil predator.

A well-known drag queen from Tampa, FL, is gunned down by an angry intruder while cooking dinner at his friend's house. Chris Hansen gets to the bottom

In Gulf Harbors, Florida, a wealthy widow who enjoys the company of handsome younger men is found beaten to death in her home. Chris Hansen finds the motive is what gives the killer away.

A young mother and her infant son go missing in California. Police find her empty car, a discarded car seat and corpse burned beyond recognition in an orchard. Chris Hansen explores a case with perhaps the most unlikely motive.

A Kansas couple invites their parents over to celebrate their upcoming wedding. Instead they are found gunned down in their own bed. Whoever did it left no trace. Chris Hanson goes after the motive to the mystery.

Yale University medical researcher Annie Le is about to get married, but she vanishes on her way to her lab. The frantic search for her turns into a nation-wide sensation. Now, for the first time on TV, Chris Hansen reveals what really happened to her.

A teenager disappears without a trace over a long weekend. His beloved new car is found abandoned on the outskirts of town ... his shotgun missing. Chris Hansen investigates a mystery that gripped a small Texas town for 10 years.

A Florida man drives off on a stormy night, never to return. His body is found floating in the St. John's river, and police have a long list of suspects. It takes 17 years to bring his killer to justice.

A young man has carved out a decent life for himself in Chapel Hill, NC, but after he disappears, his parents fear he's fallen in with the wrong crowd. Chris Hansen uncovers a bizarre-but-true tale of peer pressure and murder.

A Massachusetts community is shocked when a local man is found shot to death in his own car the day before Thanksgiving. Chris Hansen reveals a grim holiday tale of murder and betrayal.