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This FBI Laboratory file concerns Alaska State Troopers' homicide investigation of Robert C. Hansen in the killing of Shirley G. Moddemeyer. The released records are chiefly November and December 1983 evidence-submission letters, laboratory worksheets, firearms reports, and evidence-return paperwork. Troopers submitted bullets, cartridge cases, and two .22-caliber Colt pistols seized under warrants involving Hansen's residence and aircraft for comparison testing. FBI examiners reported that several cartridge cases and bullets were not fired by either submitted pistol, while bullets recovered at autopsy could not be conclusively associated with one of the guns.

FBI file number: 95-224156 | Documents span: 1983 | Released in 1 part
Names in this file: Robert C. Hansen, Shirley G. Moddemeyer, Robert J. Sundberg
Subjects: Robert Hansen, Shirley Moddemeyer homicide, firearms examination, ballistics, Alaska State Troopers