'Dark Knight' shooter's plans of massacre sent to shrink week before remained unopened'

New York, July 26 (ANI): James Holmes, who allegedly killed 12 people during the screening of the latest Batman film-'The Dark Knight Rises,'-had sent a notebook detailing his chilling plans for the massacre to a psychiatrist at his university a week before carrying the shooting rampage, it has emerged.

The package, however, containing the spiral-bound book never reached the psychiatrist, who treats patients in a psychiatry outpatient facility at the University of Colorado.

It was only discovered by chance after the attack in which nearly 58 persons were injured during a midnight screening of the film at movie hall in Colorado, The Telegraph reports.

According to the paper, when FBI agents opened the book they found its contents included drawings Holmes had made of gun-toting stick-like figures shooting at each other.

"It was full of details about how he was going to kill people," the paper quoted one law enforcement official, as saying.

It was not clear if Holmes, who was studying for a PhD in neuroscience, had previous contact with the professor.

While detectives have yet to establish a motive for the crime it also emerged that Holmes bought an AR-15 semi-automatic rifle only hours after failing an oral exam, which was a key part of his PhD. (ANI)