Pubic skool indoctrination would be my guess.
You might be right about public school indoctrination.
The suspect had a scholarship and what appears to be a good family, then just threw his life away for no good reason.
One weird angle is Stephen Crowder published information about tranny engravings on the cartridges found in the rifle magazine. I think he was right because of this:
MAGA host subpoenaed by ATF after revealing Charlie Kirk investigation details
https://www.rawstory.com/steven-crowder-charlie-kirk-atf/