but Michelle survived.
Michelle told U.S postal inspectors that Doug Gustafson was involved. It was no secret that Douglas Gustafson and his cohort, Raymond Cheely, despised George Kerr, had knowledge of explosives, and liked to blow things up. However they had perfect alibis. They were already in prison for murder.
An investigative task force was formed led by U.S Postal Inspection Service, with assistance from the Anchorage Police Department and the US department of the Treasury, Bureau of Alcohol, Tobacco and Firearms (ATF) to solve this case. THE ALASKA MAIL-BOMB CONSPIRACY-Burl Barer