I’ll give you a starter list.
The most famous was probably Charles Whitman, who took out the leader of the University of Texas SDS and 15 others that day, wounding 30 others.
Ian David Long
Wade Michael Page
Nidal Malik Hassan
Ivan Lopez
Estaban Santiago
Aaron Alixis
Devin Patrick Kelley
Dewayne Antonio Craddock/Hamilton
George Hennard
William Kreutzer, Jr.
We won’t count Stephen Paddock, since he was a civilian employee of the Defense Contract Audit Agency.
Good. Will research to see if these guys were set up to be media faces poster boys for PTSD probs as were so many.
You can add Lee Harvey Oswald and Timothy McVeigh to that list.