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People Magazine Investigates

True

In 1992, store clerks across the Midwest are being shot dead in the middle of the day, and it's not long before police realize it's the work of one killer.

Wednesday, 10 June 6 airings
15:00
Investigation Discovery
S7 E2 · The I-70 Killer - Part 1
16:00
Investigation Discovery
S7 E2 · The I-70 Killer - Part 2
17:00
Investigation Discovery
S7 E3 · Where is Mark Himebaugh?
18:00
Investigation Discovery
S7 E7 · Held Captive: The Disappearance of Tanya Kach
19:00
Investigation Discovery
S7 E5 · The Strange Disappearance of Karlie Gusé
20:00
Investigation Discovery
S7 E2 · The I-70 Killer - Part 2
Friday, 12 June 2026 1 airing
21:00
Investigation Discovery
S7 E7 · Who Killed Our Girls?