Well... you know the answer to that. The suspect is displaying his MAGA hat. You know exactly how Trump's campaign, his attitudes and his administration has been a reflection of prejudice and fear. And, getting elected is an indication to the people that REALLY believe in those things that- now- they don't have to keep those prejudices on the down-low anymore. Now, it's accepted and welcomed.How has Trump's presidency influenced more violence than we've had the last 10 years?
Not every school shooter has the same motives or racial prejudices. But, from what the link gteeitup provided, this guy did have them.