Angela Subrize was 21 when she accepted a ride from Spokane, Washington, with truck driver Keith Hunter Jesperson in January 1995. Their trip through a Wyoming blizzard ended at a truck stop just east of Cheyenne, where Jesperson later said he strangled her to death in the sleeper cab after an argument about driving and sleep.

Jesperson reported he left her body in his truck, then drove into Nebraska, bound her with rope, secured her under the rig and dragged her for roughly ten to twelve miles before discarding what remained in a ditch off Interstate 80, about 250 miles from the killing site. Her badly decomposed remains were found in September 1995 and identified by pelvic x-rays and a Tweety Bird tattoo on her ankle.

Jesperson, later dubbed the Happy Face Killer, confessed to her murder while in custody for another killing and provided details that tied him to her death; he pleaded guilty and is serving a life sentence. Did anyone who knew Angela in Spokane or Colorado ever see her in January 1995 or know about her travel plans?