Colorado Police Station Bomb Suspect To Plead Guilty

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DENVER (AP) — A man accused of leaving a bomb outside a police station in a small Colorado mountain town to avenge the killing of a fellow member of a hippie group in the 1970s is expected to plead guilty.

David Michael Ansberry is expected to acknowledge Tuesday that he left a powerful bomb containing arsenic outside the Nederland Police Department on Oct. 11.

Surveillance video captured him buying cellphones to trigger the explosive. He was easily recognizable because he is 3-foot-6, 100 pounds and uses crutches.

David Michael Ansberry (credit: CBS)

The device did not detonate.

Investigators say he was trying to avenge the 1971 killing of his friend Guy Goughnor at the hands of Renner Forbes, who was a town marshal at the time. Forbes was convicted of the killing in 1998.