CENTENNIAL, Colo. – Authorities say that attorneys for the Colorado movie shooting suspect called the University of Colorado four days after the attack and asked the school return a package that James Holmes had sent to his psychiatrist.

CU Police Chief Douglas Abraham said the call alerted them to the presence of the unopened package in the campus mail room. He made the disclosure during a hearing Monday.

Holmes was silent during the hearing. He is charged with killing 12 people and injuring 58 others in a crowded theater in July.