Biography
David Michael Ansberry was a member of the Colorado counterculture group Serenity, Tranquility, and Peace in the 1970s. In July 1971, a fellow member of the group, Guy Goughnor, was arrested by local police for refusing to leave a bar and thrown into the back of a Nederland police vehicle, after which he was never seen alive again. His body was found a month later in a remote canyon with a single gunshot wound to the head. Boulder County Sheriff's Department investigators concluded he was likely murdered by local police but refused to bring charges and instead closed the investigation within a few weeks. The town marshal later confessed to murdering Goughnor and received a sentence of only two years' probation. In retaliation for the murder, Ansberry allegedly created a crude improvised explosive device, which he attempted to detonate in the parking lot outside the Nederland Police Station on October 11, 2016. The device failed to detonate, and no one was injured. He pleaded guilty to attempting to use a weapon of mass destruction against a person or property in the United States and was sentenced to 27 years in federal prison.
