Did he retire with disability?
Why leave money on the table...
He will eventually get a disability rating, it takes a while. Pretty much all retired cops get at least 20%-50%, which means that portion of their retirement check is exempt from state and federal income tax. At some percentage point, you get your full pension, plus an additional disability payment. I have a friend who is getting the extra disability pay and he is plenty healthy to work, play sports, etc.
You can bet Peterson will get plenty of disability for PTSD, in addition to every ache and pain that comes with being in your 50's.
Being as asshole is not technically a disability from a legal perspective.