A California detective hunts a street walker's murderer; a couple of tenacious Kansas City investigators use DNA results to solve a woman's murder in 1990.
A 19-year-old woman's friend is accused of killing her until police connect another man to the crime through DNA; a young mother's murder is investigated.
An innovative clay modeling technique allows Wisconsin authorities to identify a murder victim; California police track two Satan-worshipping arsonists.
An 11-year-old is left on a sinking yacht; a volunteer worker is buried under rubble after a massive earthquake rattles Haiti; a truck driver encounters gunmen.
A train derails near a farmhouse and blankets the home's residents in poisonous gas; a woman is left for dead after she is run off the road and attacked.
While on a first date, a young couple is taken to a deserted reservoir and shot execution-style; a 13-year-old girl escapes from the men who have abducted her.
24-year-old Becky Koster texted that she made it home safely after a night out with friends, but she was no where to be found by the time her mother got home.
A blogger takes a trip to Costa Rica to celebrate her 36th birthday, but when her return plane landed, her loved ones soon realized that she was never on board.