Sounds like a big coverup but perhaps the truth will come out someday.
After every Muslim terrorist attack, we’re told it is due to mental illness, he was personally abused, it is the victims’ culture’s fault, the Islamic terrorist isn’t really Muslim, or, at best, a random lone wolf like a lightning strike ... never, ever blame the violent rape culture they came from.
After Antifa violence, we hear that it is the victims’ fault for instigating it, how dare you show up to rally for “hate”, they’re crazy (like Scalise’ shooter) or “they aren’t really liberal”.
I think the fact that the liberal shooter went to such pains shows it was a rational, deliberately planned attack on a mostly conservative audience. But the liberals entrenched in the intelligence agencies don’t want to admit it IS their fault for both fostering the political hatred and overlooking the issue.
So they pretend it is a random crazy dude, a standard MO for other ideologies linked to terrorism.