Police found the journal of Columbia, Maryland mall shooter, Darion Marcus Aguilar.
The boy killed three people, including himself, after firing nine shots into a store for skateboarders.
Police have not identified if the journal includes a motive but have stated it shows signs of depression.
Stay updated with Newsbreaker's coverage:
MORE NEWSBREAKER STORIES LIKE THIS ONE:
- TERRIFYING: New CCTV Footage Shows Terrorists Storming Kenya Mall in September Attack
- Middle School Shooting in Nevada Leaves Shooter and Teacher Dead; 2 Critically Injured
- DEVELOPING: 13 Dead, Gunman ID'd and 2nd Gunman Sought in DC Shooting Spree
The views and opinions expressed herein are those of the author's alone and do not necessarily reflect the views of Ora Media, LLC, its affiliates, or its employees.