Season 4 Episodes17
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Ranked #17 of 17 in Season 4•−0.7 vs season avg
When Karen Pannell was found stabbed to death, a message scrawled in blood seemed like a beacon that could lead detectives to her killer. But what exactly did it mean? It would take a dogged forensic specialist with a keen eye to unravel the mystery.
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"Written in Blood" is episode 8 of Dateline: Secrets Uncovered season 4. It scored 6.8/10 from 10 votes, ranking #17 of 17 episodes this season (season average 7.5). It aired on August 31, 2018.