I feel like we need to be careful when assuming that any of these are false flags, though they likely are.

It doesn't do any good to point this out to anyone, they will use this as the way to discredit you when you start talking about relevant and important false flags like 9/11. I'm not saying that these shooting aren't important but they are going to be hard to prove that this was indeed a FF, whereas 9/11 is easily proven with physics and such.