Any rooster that has attacked and injured anyone, especially a child, should go in the stew pot. That's like keeping a dog that bites. It's a liability you can't afford. I'll bet your homeowner's insurance won't cover injuries to a person caused by livestock. Can you imagine if the little girl's eyes had been poked out? Even if her parents don't want to sue you, their insurance company surely will come after you for reimbursement.
EAT HIM.
EAT HIM.