Forensic Files - Season 12_ Episode 29 - Guarded Secrets - Full Episode

"A security guard vanished from his post without a trace. His remains were found a year later. For fourteen years, the case went cold. Then a single phone call—and a microscopic paint smear on the victim's boot—broke the case wide open."Brian Roof disappeared from his post at a Utah copper mine in 1991. His wife reported him missing, but there were no signs of foul play. The investigation stalled until his body was discovered months later. A paint chip on his boot eventually led cold-case investigators to Dale Bradley, a co-worker who had been involved in a love triangle with Roof. The forensic evidence forced a confession and a guilty plea[citation:1][citation:5].