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20/20 S47E9 — Diary of a Killer

7.6

20/20•Season 47•Episode 9

Diary of a Killer

7.6/10 · 22 votesDec 8, 202380 min

Ranked #11 of 32 in Season 47•+0.3 vs season avg

The murder of a beloved mom sparks an international manhunt; police uncover clues in an accused killer's diary.

Previous episodeE8 · The One That Got Out Next episodeE10 · All American Murder

Seasons29

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Season 47 Episodes34

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Happily Never After

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Catch Us If You Can

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E9 7.6Now viewing

Diary of a Killer

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Episode Summary

"Diary of a Killer" is episode 9 of 20/20 season 47. It scored 7.6/10 from 22 votes, ranking #11 of 32 episodes this season (season average 7.3). It aired on December 8, 2023.

Next: E10 · All American Murder Best of Season 47