White/Caucasian male Troy Lynn Duncan, age 34, died on May 19, 1984, near Manley Hot Springs, Alaska, during an airborne search for a suspected spree killer. A trooper based in Fairbanks, he and other Special Emergency Response Team members were closing in after spotters located the suspect along the Zitziana River. As their helicopters approached, the gunman—identified as 25-year-old drifter and Army veteran Michael Alan Silka—fired a. 30-06 rifle, a round piercing a helicopter windshield a
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