S1 E2: One crime baffled a small Argentina town; the other held the entire state of California hostage. The thread that links these two cases occurring 100 years apart? Both murderers were done in by their own hand.
It's harder and harder to get away with murder. Today, detectives are convicting more criminals than ever before, thanks to forensic science. Fingerprints, bones, even insects are now forms of indisputable evidence, but that wasn't always the case. Revisit history's dramatic murder cases and see how forensic tools are changing crime solving.
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