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This episode of Forensic Files recounts the investigation into the murder of 17-year-old Belinda Tillery, whose skeletal remains were discovered in Yellow House Canyon, Texas. After forensic anthropologist Dr. Harold Gill King determined the victim was a young Caucasian woman who died from multiple stab wounds, investigators turned to forensic artist Karen Taylor to reconstruct her face. Her detailed two-dimensional facial reconstruction, based on scientific tissue thickness data and subtle anatomical clues like facial asymmetry and a red hair found at the scene, led to identification by Belinda’s mother, Beverly Tillery. The case then pivoted to Troy Armstrong, Belinda’s ex-boyfriend and the father of her unborn child, who had a history of violence and substance abuse. Though initially elusive, Armstrong was tracked down using GPS data from a truck driven by his friend, leading to his arrest. Evidence found in a storage locker—Belinda’s personal items, including her driver’s license—solidified the case. At trial, Armstrong’s former girlfriend Angela Allen testified that he confessed to the murder and threatened her family. After a brief deliberation, Armstrong was convicted of first-degree murder and sentenced to life in prison. The episode highlights the critical role of forensic science, particularly facial reconstruction and GPS technology, in solving cold cases and bringing justice to forgotten victims.