Well, having had to bury my eighth-grade son ( as a result of an accident), and knowing how devastating that is, I'd say it's not quite that simple.
Before a police officer shoots a kid in the head, he ought to exhaust every other possibility.
It's not like the kid had been shooting others in the school.
The kid was cornered in the bathroom and could have been shot by police ANYTIME, at their convenience... later rather than sooner.
If the cops were told the kid did not have a real gun, knew he was cornered in a bathroom and they knew the kid hadn't shot anyone, they could have simply waited for the kid to get tired of a stand-off.
Where is the kid going after being surrounded by a SWAT team?
I hate to say it but this doesn't sound like very good police judgment when it comes to the use of deadly force.
In instances like this, I don't feel I have any right second-guessing what the cops could or should've done. I'm not in their shoes, it's not the kind of job I'd want to do.
My condolences on the loss of your son at such a young age.