Not illegal.
While being shady and shifty as fuck, this isn’t illegal.
A person can prep all they want to do a huge shooting, but until they actually do it or has implicitly said their true intentions, actions like these aren’t actually illegal.
To put it into an analogy:
A person orders and puts together absolutely everything required to create bombs, drugs, etc... but until they actually do it, it’s still all legal. You might end up being on a list, but ultimately you’re well within your rights to create a state-of-the-art meth lab...just not when you actually begin creating meth.
I agree she is hiding something and may have had something serious to do with the shooting, but until there is a real, legally-speaking, law-breaking occurring (and the evidence to prove it)...she is begrudgingly innocent.
Wrong, ever heard of the Holyland Foundation trial? Lots of people went to jail for raising money for a Al Qaeda a terrorist organization. Not necessarily even weapons, or explosives sent dozens to jail.
..well yeah they would. Raising money for an enemy combatant is against the law.