Alek Minassian - Asperger's - Led to him being bullied in school, not being able to hold down a position in the Army and having an obsessive interest with computers and videogames such as Halo. Though it was noted he had a natural aptitude for computers and was thought of as 'brilliant' by his classmates after High School
Jake Davison - Asperger's - Led him to not understand why girls did not like him and see himself as socially unable to get a girlfriend due to his Asperger's.
I can't provide a detailed explanation for anyone else but some other shooters that had autism or a behavioral condition are:
- Brandon Scott Hole
- Chris Harper-Mercer
- Barry Loukaitis
- Nikolas Cruz
"One day I might just disappear and you will never find me. Nobody will ever find me"