Robert Duboise

In 1983, 19-year-old Barbara Grams was found murdered behind a dental office in Tampa, Florida. Detectives said a small mark on her cheek was a bite — and that 18-year-old Robert DuBoise’s teeth matched it. That single piece of forensic “evidence” sent him to death row.

But nearly four decades later, new DNA testing proved what Robert had said all along — he was innocent. The mark wasn’t even a bite.

This week on Forensic Tales, we uncover how junk science, unreliable witnesses, and a discredited forensic method stole 37 years of an innocent man’s life.

Because in forensic science, the smallest mistake can destroy a life.

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