The county doesn’t want to pay the hundreds of thousands in medical expenses this kid is racking up at Harborview (#1 trauma center in the state). They will most likely charge him sometime in the next couple of years before the statute of limitations runs out. They’ve done this a couple of times in the past.
Jurys are funny things. They have a way of not working out the way you expect. Ask the state of Florida which is now on the hook for $300,000 in legal defense fees since losing the Trayvon Martin jury trial.