DENVER, July 25 (UPI) --
Theater shooting suspect James Eagan Holmes
may have sent a notebook to a Colorado psychiatrist detailing his plans for the massacre, FoxNews.com reported.
The information was attributed to unnamed law enforcement sources.
FoxNews.com said the package, sent to a University of Colorado psychiatrist, went unopened until Monday.
"There were drawings of what he was going to do in it -- drawings and illustrations of the massacre," FoxNews.com reported Wednesday.
The Denver Post said a law enforcement source confirmed Holmes mailed a notebook to a psychiatrist but the source did not know what it contained, the newspaper said.
FoxNews.com said investigators found a package with Holmes' return address on it that had been sent to a professor who also treats patients in the university's outpatient facility. The package had been in the mailroom since July 12.
"Among the images shown in the spiral-bound notebook's pages were gun-wielding stick figures blowing away other stick figures," FoxNews.com said.
Twelve people were killed and 58 others were wounded when Holmes, 24, allegedly opened fire in an Aurora, Colo., theater last week.
Related UPI Stories
© 2012 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
1 of 54
Accused movie theater shooter James Holmes (left) makes his first court appearance at the Arapahoe County Courthouse with his public defender Tamara Brady on July 23, 2012 in Centennial, Colorado. According to police, Holmes committed one of the worst mass shootings in American history, killing 12 people and injuring 58 when he opened fire on a movie theater showing the premier of 'The Dark Knight Rises'. UPI/RJ Sangosti/PoolDesiree Clemenson, Robby Paris and Sandra Paris gather for the prayer vigil at the Aurora Municipal Center on July 22, 2012 to honor the victims of last Friday's movie theater mass shooting at the Century 16 Movie theater complex in Aurora, Colorado. Suspect James Holmes, 24, allegedly went on a shooting spree, killing 12 people and injuring 58 during an early morning premier screening of 'The Dark Knight Rises.' UPI/Trevor Brown, Jr.
| License Photo