Duly noted, Ultron.
So, you keep saying this, but what makes you think that it's a reasonable assumption that he might kill more people? Let's pretend that you're the skateboard guy. What about this situation would make you think that he's going to attack someone else and needs to be stopped?
Is he firing indiscriminately into the crowd?
Is it looking and aiming at you? Is he aiming at anyone?
Is he heading into an orphanage?
Walk me through the thought process that would cause you, the skateboard guy, to believe that he's going to kill more people and needs to be stopped.
Alright.
Assuming I'm skateboard guy...
I live in a country where mass shootings happen regularly.
It's typically perpetuated by angry disgruntled white people with rifles.
It's often right wingers or people adjacent to them.
I'm at a protest against police brutality, something predominantly cared about by the left.
In comes this white kid punk with a rifle who clearly is opposed to the protests (and so is probably right-adjacent at least) and thinks walking around with a gun is a good idea.
HOLY SHIT, he just shot someone in the goddamn head.
He has a long gun with a magazine that's clearly got more ammo in it.
Putting all these facts together, I VERY MUCH would think that he's going to try to shoot more people. It's the assumption most likely to save lives in that exact second.
...The difference between skateboard guy and me is that I'm a coward (and not ashamed of that) and would instead run for my life going "ACTIVE SHOOTER! ACTIVE SHOOTER! RUN FOR YOUR LIFE!!!" and dive for cover while perhaps calling the cops in some NAIVE hope that they'll care that there's an active shooter killing protesters and not secretly cheer.
And with that, it's the weekend for me, maybe see you all on monday. I'm going home to unplug entirely from politics so I don't go mad from frustration.