Season 1 Episodes25
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Ranked #2 of 22 in Season 1•+0.5 vs season avg
The case involved detective work so unique, it managed to stay with Dennis Murphy for years; days before Christmas, Michelle Martinko was visiting the mall when she was found stabbed to death; investigators found her killer almost 40 years later.
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"And Then There Were Three" is episode 7 of Dateline: Unforgettable season 1. It scored 8.0/10 from 9 votes, ranking #2 of 22 episodes this season (season average 7.5). It aired on December 21, 2021.