About this showing of Bloodline Detectives
DNA identified 25-year-old Mary Schlais's 1974 hitchhiking murder in Minnesota, linking it to John Miller and showing how genetic genealogy brings long-awaited justice.
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Previously on TV
Previously shown on True Crime on Mon 19 Oct 2026 at 03:00.
This showing was on True Crime at 03:00 on Mon 19 Oct 2026. See future airings below or open the main programme page for the latest TV times.
DNA identified 25-year-old Mary Schlais's 1974 hitchhiking murder in Minnesota, linking it to John Miller and showing how genetic genealogy brings long-awaited justice.
The next currently listed showing is Sun 8 Nov 2026, 03:00 on True Crime.
See all current showings