See this is such obvious bullshit that it needs to be reiterated -
The guy is *not* crazy. He was completely aware of what he was doing. He took meticulous care to prepare for his attacks - masks, researching the addresses of his many victims, disguising himself and his vehicle, preparing his escape route and coordinating with others to expedite his flight from law enforcement- none of this at all says that he's nuts. All of it evinces a clear mind, preparation and premeditation, and an awareness of the consequences and wrongness of his actions.
This is right wing terrorism. Full goddamn stop. And if he's crazy, then literally the entire Republican electorate is also crazy.