The Annapolis shooter was a former government contractor for the U.S. Labor Department’s Bireau of Labor Statistics as shown here by this artivle:
As in the Paddock Las Vegas case, a shooter who is a former government worker, Paddock was IRS and Post Office.
Also as in the Paddock case we have a mass shooter who filed a lawsuit that was not successful.
Paddock’s lawsuit:
https://heavy.com/news/2017/10/stephen-paddock-criminal-record-lawsuit/