DENVER — A Colorado judge will not delay the death penalty trial of a man accused of killing a prison guard, despite prosecutors' objections that they needed more time to respond to new questions about the suspect's original conviction.

On Friday, Douglas County District Judge Richard B. Caschette denied a prosecutor's request to postpone the trial of Edward Montour, who was serving a life sentence for the 1997 death of his 11-week-old daughter when prosecutors say he beat to death corrections officer Eric Autobee in 2002. He pleaded not guilty by reason of insanity, and prosecutors sought the death penalty.

Prosecutors on Thursday sought more time after defense attorneys announced they would call new witnesses who would testify that Montour's daughter suffered an undiagnosed bone disease, and her death was an accident.