The killer may be a racist but that is no reason for killing. No, the reason is because we have a dramatic failure in our mental health program.
I read the other day that 31 of the most recent mass killings have been committed by persons on psychiatric drugs. And that psychiatrists tell LE to hide that from the public in fear that those on the drugs may stop using them.
Why are so many on these dangerous drugs? All other reasons being given are but smokescreen for the real reason - the breakdown in mental health services.
Throw in the photo of his burning the flag and its evident he starts from a basis of hatred ...