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Mark of a Serial Killer

Dr. Henry Lee Shares His DNA Findings

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Dr. Henry Lee, a forensic scientist, discusses the process by which he was able to present Mark Steven Johnson as a murder suspect through his DNA findings. Dr. Lee also emphasizes how important teamwork is in a crime investigation.

Tags: Mark of a Serial Killer, True Crime, oxygen, serial killers
S3 E139 minTV-14Web ExclusiveReality and Game ShowPrimetime
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