CENTENNIAL | Defense attorneys say the doctor who conducted a sanity evaluation on the man charged with a mass killing in a Colorado movie theater interviewed him for 22 hours.

FILE - This June 4, 2013 file photo shows Aurora theater shooting suspect James Holmes in court in Centennial, Colo. Prosecutors in the Colorado theater shooting case joined defense lawyers in opposing television coverage inside the courtroom during the trial, saying it would inflict intense and hurtful attention on victims who testify. (AP Photo/The Denver Post, Andy Cross, Pool, File)

Attorneys for James Holmes made the revelation in court documents released Tuesday that deal with what evidence the defense must share with prosecutors. The doctor’s findings haven’t been released.

Holmes has pleaded not guilty by reason of insanity to killing 12 people and injuring 70 in the July 20, 2012, attack on a Denver-area theater. The trial is expected to start Dec. 8.

The interview was part of the second sanity evaluation for Holmes. A judge ordered it after prosecutors said the first exam was biased.

The evaluation is a key piece of evidence jurors will consider when determining Holmes’ sanity.