Retired UMD professor raises eyebrows with school shooting theory

A retired University of Minnesota Duluth professor known for his conspiracy theories on John F. Kennedy’s assassination, the 9/11 attacks and the Paul Wellstone plane crash has found himself in the news again — this time for claiming the U.S. government was involved in the Newtown, Conn., school shootings.

By: Jana Hollingsworth, Duluth News Tribune