... James and Jennifer Crumbley, the first parents of a US school shooter to be convicted ...

My guess is that this will be appealed, all the way to SCOTUS.

It would be an interesting precedent to hold the parents responsible for their apparent child-rearing negligence....

From the cited article...

...Nicole Beausoleil, mother of 17-year-old victim Madisyn Baldwin, addressed Ethan Crumbley's parents directly.

"When you were purchasing a gun for your son and leaving it unlocked, I was helping her finish her college essay," a teary-eyed Ms Beausoleil said.

"You decided parenting wasn't a priority," she added. "And because of that I've lost my daughter." ...