I appreciate the response.
I looked up Oregon law and you have to be 18 to buy a gun. So this kid at 16 couldn't legally obtain one (I'll sure we'll find out at some point how he got it).
At 30K feet here's the challenges I see. We have a 2nd amendment so guns aren't going away. For the sake of discussion even if we overturned it and banned guns, there are still millions in the country and retrieving those would be difficult. And like drugs and alcohol, we can make them illegal but people still find a way to get them.
This isn't to say therefore we should throw our hands up and do nothing. But kids who are determined to find something (guns, drugs, alcohol etc.) often can. So we can put more restrictions on legal ownership, but I don't know that it will stop guns from getting in the hands of kids.
That sounds kind of fatalistic I know and I don't mean to be negative. I have a nine year old, I couldn't fathom going through this. But guns have been around a long time and kids didn't shoot up schools previously anywhere near like they do today.