Prosecutors in the Colorado theater shootings have received defendant James Holmes' mental health records from the state hospital and a university he attended.
The records, sealed in six manila envelopes, were turned over at a hearing Monday.
Prosecutors are entitled to the records because Holmes pleaded not guilty by reason of insanity to murder and attempted-murder charges.
He's accused of killing 12 and injuring dozens more in a July 2012 attack. Prosecutors are seeking the death penalty.
Holmes was treated by a psychiatrist at the University of Colorado, Denver and underwent a sanity evaluation at the state hospital.
At Monday's hearing, the judge said he would seat 12 alternate jurors as well as the regular 12-member jury.
He also said he will issue 6,000 jury summonses, up from 5,000 originally planned.