Prosecutors in the Colorado theater shooting case want a judge to keep the public from seeing graphic autopsy and crime-scene photos during the trial.

Prosecutors wrote in a Thursday court filing that families of the 12 people killed in the 2012 attack want such images to be shown only to jurors, not to people seated in the courtroom or watching a live video feed.

The parents of 24-year-old Alex Teves said in a letter attached to the motion that allowing the public to see pictures of his body would be cruel punishment for the family.

Prosecutors say the photos are of little value to the public.

Defendant James Holmes has pleaded not guilty by reason of insanity in the shooting. Jury selection continues.