Scoop: 20/20 on ABC - Friday, July 18, 2014

Scoop: 20/20 on ABC - Friday, July 18, 2014Sixteen-year-old Skylar Neese disappeared from her home one summer night, last seen on surveillance video sneaking out of her window and getting into a sedan.

What many thought was a typical case of a teenage runway turned out to be something much more wicked - Neese was stabbed to death by her two best friends. The police had no leads until a surprising break in the case.

Correspondent Ryan Smith interviews Neese's parents, police and high school classmates to unravel the horrific mystery and murder, and ultimately the surprising suspects. Anchored by Elizabeth Vargas and David Muir, "20/20" airs on FRIDAY, JULY 18 (10:00 - 11:00 pm ET) on the ABC Television Network.