The accused shooter James Holmes will be formally charged on Monday. He could face the death penalty.
Court papers say the former graduate student accused in the movie theater shooting was being treated by a psychiatrist at the university where he studied.
The revelation was disclosed Friday in a defense motion. The motion sought to discover the source of leaks to some media outlets that a package that Holmes sent the psychiatrist contained a notebook with descriptions of an attack.
The motion says the package contained communications between Holmes and Dr. Lynne Fenton that should be shielded from public view.
A message left with Fenton's office was not immediately returned.
The package was seized by authorities Monday after it was discovered in the mailroom at the University of Colorado, Denver. It's unclear if it was sent before the attack early Friday.
(The Associated Press also contributed to this report.)
Saturday, May 25 2013 2:16 AM EDT2013-05-25 06:16:04 GMT
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