The Investor Murders: Alaska's Largest Mass Murder

On September 5th, 1982 The Investor docked on a little Alaskan island called Craig. The Investor was a ship owned by skipper Mark Coulthurst. He had brought his family and a good-sized crew along for the trip. There were four young crew members on board, Mark, his pregnant wife Irene, and their two children 5-year-old Kimberly and 4-year-old John. Unfortunately on the night of September 5th somebody climbed aboard and massacred the entire family. 39 years later, this case remains unsolved and is considered Alaska’s largest mass murder.

What Happened in Craig: Alaska's Worst Unsolved Mass Murder



What Happened In Craig: Alaska's Worst Unsolved Mass Murder by Leland E. Hale



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Cowritten by Alaina Urquhart, Ash Kelley & Dave White (Since 10/2022)

Produced & Edited by Mikie Sirois (Since 2023)

Research by Dave White (Since 10/2022), Alaina Urquhart & Ash Kelley

Listener Correspondence & Collaboration by Debra Lally

Listener Tale Video Edited by Aidan McElman (Since 6/2025)

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