The Dental Impression of a Murder Weapon

Murder Files Unsealed · Aug 4, 2026 · 41m · transcript

This episode details the decade-long investigation into the robbery and murder of an elderly couple in Bakersfield, California. Although Robert Cowan and his brother were early suspects found with the victims' stolen property, a lack of physical evidence and a critical fingerprint misidentification initially stalled the case. Ten years later, a homicide detective reopened the file, leading to a scientific breakthrough involving dental casting material to examine a tampered gun barrel. By creating a silicone mold of the unaltered rifling deep inside the firearm, experts successfully matched…