Watch True CSI online: Episode 9 The Strangler

Investigating the 1974 murder of art student Cheryl Miller, who was found lying dead in her own bedroom. While initial findings indicated the victim had died from strangulation and been sexually assaulted, the case was only solved 20 years later when the wife of the prime suspect discredited his alibi and the original forensic methods, which stipulated the assailant was sterile, were re-examined

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