Watch ABC News Live live with Fubo for $0 Today

20/20

A young woman is murdered in her own home, leaving only one mysterious clue to help catch a killer.

Wild Crime

After experienced hiker Meredith Emerson goes missing, a massive search-and-rescue operation begins; when investigators learn of two other missing hiker cases that ended in murder, they are left wondering if a serial killer took Meredith.

Wild Crime

Serial killer Gary Michael Hilton has killed two women in national forests across the southeast; Hilton has escaped twice so far, leaving his victims without justice; but as police search a dumpster full of bloody clothes, Hilton is spotted nearby.

Wild Crime

After police catch Hilton, he offers a chilling confession and confirms Emerson is dead, but he does not disclose the location of her body; investigators choose to make a deal with the devil, offering no death penalty if he takes them to her.

Wild Crime

After Ga., sentences Hilton to life in prison, Fla., tries him for killing Cheryl Dunlap; experts looking into other unsolved missing hiker cases raise questions about additional murders Hilton may have committed.

Euthanasia: Right to Die?

The Playlist Presents: DALE PLAY!

What Would You Do?

Using hidden cameras, host John Quiñones observes and comments on how ordinary people behave when they are confronted with dilemmas that require them either to take action or to walk by and mind their own business. Various scenarios are created that force people to make split-second -- and often surprising -- decisions, and variations of the situation (such as changing the genders, races or clothing of the people involved) are often featured to see if different reactions are elicited. Examples of situations on the show include a waitress being harassed by her boss, and a drunken valet trying to park cars.