An ex-convict suspected of planting a homemade bomb at a Denver-area shopping mall has pleaded not guilty to charges of using a destructive device and arson.
A federal judge on Friday ordered Earl Albert Moore held without bail. A trial date has not been set.
Moore has been indicted on federal charges including a destructive device count, which carries a sentence of up to life in prison.
He is accused of starting a fire on April 20 at a mall two miles from Columbine High School. That date was the 12th anniversary of the shootings at that school, where 13 people died.
Authorities feared the mall incident was connected to the anniversary, but they now say it's unrelated.
A motive has not been released.