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DNA led to an arrest, a guilty plea and a 48-year prison sentence in a 2005 murder that had gone unsolved, according to the Denver district attorney’s office.
Gerald Cooper, 48, pleaded guilty to second-degree murder Tuesday and was sentenced in the death of 57-year-old Carol Colaiano, who was found beaten and stabbed to death in her apartment at 1255 Galapago St. in July 2005.
Cooper later pleaded guilty to assault in a different case in the same building and was required to submit DNA, which linked him to the Colaiano murder, prosecutors said.
