Ruthless murderers like the BTK Strangler and Dr. Death were brought down by revolutionary forensic techniques that pushed the boundaries of detective work.
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Ruthless murderers like the BTK Strangler and Dr. Death were brought down by revolutionary forensic techniques that pushed the boundaries of detective work.
When BTK started killing, using DNA evidence wasn't the norm. But 20 years later, tiny traces of DNA left on his first victims could be enough to bring him to justice.
Smithsonian Channel Presents Forensic Firsts
Ruthless murderers like the BTK Strangler and Dr. Death were brought down by revolutionary forensic techniques that pushed the boundaries of detective work.
