Sources:

https://en.wikipedia.org/wiki/James_Holmes_(mass_murderer)

https://www.youtube.com/watch?v=M4YpnKBn8ok

https://www.nytimes.com/2012/08/27/us/before-gunfire-in-colorado-theater-hints-of-bad-news-about-james-holmes.html

https://www.cnn.com/2015/06/05/us/james-holmes-theater-shooting-trial/index.html

https://www.documentcloud.org/documents/2089833-james-holmes-notebook