There was a time when the law said it was OK to hang children for stealing hankerchiefs and burn people alive for being witches.
Personally, I have a problem with locking up a 13 year old for the rest of his life when he neither pulled the trigger nor gave the order for someone else to do so...
Then you'd be the perfect juror for the defense. Personally, I wouldn't bat an eye. And I certainly wouldn't be swayed by any of this boo-hoo bull flop.