<human>: My son was struck in the forehead by a BB another child shot from his yard into my yard. Police showed up, identified child, got a confession, and the child went to court and pleaded guilty. 

When my child was struck, I took him to the ER as I was unsure of what to do and the BB was stuck under his skin just above his eyebrow. They did some kind of scan, determined it was not biodegradable, and sent us home with pain meds, antibiotics, and a referral for a plastic surgeon for removal. 

We had it removed later on once it had healed up. 

Judgement against the child that struck my child was for his parents to pay all medical bills and he had to do some community service. 

It has been 6 months and the parents have not paid a single dime on the hospital bill. The hospital is now threatening collections. 

I am in Tennessee and the judgement was made in the same. 

What do I do to get these people to pay the bills, or at least begin paying on them so it doesn't go to collections? 

They do have the bills as the judge asked us for them and gave them to the child's attorney.

Provide a brief overview of the text.
<bot>: criminal court judgement says another party must pay my child's medical bills, but it's been 6 months and they haven't paid a red cent. Help?