Forensic Files - Season 11 Episode 15 Nice Threads No Witnesses. No Leads. No Problem.
Overview: A woman was found dead on the bedroom floor of her apartment. The crime scene yielded little of value, and investigators wondered if they would find enough evidence to make a case, much less catch a killer. But a bloodstained sheet and a breakthrough forensic technique enabled them to identify the murderer, and convince the jury of his guilt.