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20/20 S49E15 — What The Killer Left Behind

7.3

20/20•Season 49•Episode 15

What The Killer Left Behind

7.3/10 · 24 votesJan 30, 202681 min

Ranked #8 of 32 in Season 49•+0.5 vs season avg

A mother's unwavering crusade for justice after her daughter's murder and the hidden clue that helped catch a killer living in plain sight.

Previous episodeE14 · Her Last Note Next episodeE16 · Footprints in the Snow

Seasons29

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Season 49 Episodes33

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E15 7.3Now viewing

What The Killer Left Behind

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Cast2

David Muir

David Muir

Self - Anchor

Deborah Roberts

Deborah Roberts

Self - Anchor

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Episode Summary

"What The Killer Left Behind" is episode 15 of 20/20 season 49. It scored 7.3/10 from 24 votes, ranking #8 of 32 episodes this season (season average 6.8). It aired on January 30, 2026.

Next: E16 · Footprints in the Snow Best of Season 49