Not surprising to find out this was a radicalized MAGA Trump fanatic. At some point I expect something is going to happen about propaganda mills and indoctrination hotbeds like Stormfront, Infowars, r/the_donald etc. They are using these outlets to target insecure young men who are susceptible to the false narratives they push about what masculinity is and isn't. Getting them when they are vulnerable, indoctrinating them and hoping they will grow up to the fill the void of their dying off voter base.
It is going to continue that the most vulnerable and dysfunctional among this already delusional group will turn to violent terrorism. This is the standard playbook of radicalization. The fringe among the fringe will turn on those they hate and use violence, some will even start killing them.