She was a fairly useful idiot, before she was killed, imo. And for the leftards, she was absolutely, 100% a useful idiot after she died.
Of course, she didn't deserve to die for being a useful idiot, but she still put herself in a situation where that obviously could/did happen. When you think that what you're doing is akin to some kind of fun time with the family, and your partner thinks law enforcement isn't using real bullets, then you tend to get the worst of what can happen. She committed a terrorist act, whether she was aware of it at the time or not. I tend to think she was aware of it on some level, which is why she tried to run.