A California murder went unsolved for nearly 30 years, until one DNA match cracked the decades-old case.

The murder of 22-year-old Debbie Dorian shocked the Central Valley of California in 1996, but DNA evidence would finally help identify her killer in 2019 and put him behind bars for life, unraveling a shocking tale of a serial predator in the process.

A new "20/20" episode, " I'm Going to Get You ," airing Friday, Nov. 14, at 9 p.m. ET on ABC and streaming the next day on Disney+ and Hulu, examines the case.

You can also get more behind-the-scenes of each week's episode by listening to "20/20: The After Show" weekly series right on your 20/20 podcast feed on Mondays, hosted by "20/20" co-anchor Deborah Roberts.

In August 1996, Debbie D

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