So sorry for assuming you were talking about the US when you talked about school shootings.
I come from a country like that too, but if you think police brutality doesn't happen in your country then again: political bubble.
Go ahead, tell me what country you're from and I'll burst it for you.
I used to say the same thing about my country, Australia, where they've recently been imprisoning whistleblowers who expose clear government abuse. EDIT: They've also been doing racist colonial violence since day 0 and they have never stopped.
There is no such thing as a state that can be trusted with violence. They always use it to oppress.