Wild Crime Season 4

ABC News Studios popular true-crime docuseries returns for a new season with, "Wild Crime: Eleven Skulls," which delves into the haunting 2012 disappearance of Samantha Koenig, an 18-year-old Anchorage barista last seen leaving her place of work with an unknown man on a dark winter night. The search for Koenig leads FBI and police from Alaska's wilderness to the remote forests of Washington's Olympic National Park and all the way to rural Vermont, exposing a killer's terrifying trail of crimes. As investigators follow the twisted clues of this case, they uncover the identity of Israel Keyes, a psychopathic serial killer with a hidden life of violence and a dark path he forged while growing up off the grid. Ultimately, a search of Keyes' prison cell reveals what investigators believe to be the chilling truth.