That's a pretty light sentence for 375 murder attempts and threats.
His federal guilty plea appears to admit to 375 swatting calls. So I don't think the state or local courts can subsequently charge him for any of those calls - they would need to find evidence of some separate calls.
https://www.shouselaw.com/ca/blog/federal-crimes/is-it-doubl...
"It's hardly my fault the police doused pluc with gasoline, all I did was throw a match"
The kid needs to be punished, but that doesn’t change the fact that we have a glaring hole in our law enforcement procedures so large that even children can exploit them. That’s insane. Children are always going to do dumb shit, we need to have policies and procedures to guard against that.