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The hunt uncovers clues that the Zodiac Killer may have served in the U.S. Armed Forces, as the team’s supercomputer identifies strange symbols in the killer’s code that would have been known to only a few when it was written. Sal and Ken find new evidence that may lead to the killer.
First Air Date : Nov 14, 2017
Last Air date : Dec 12, 2017
Episode : 5 Episode
Season : 1 Season
Runtime: 50:14 minutes
Studio: History
Country: United States of America
