My name isXXXXX have been a licensed attorney for over ten years and will be assisting you today.
Before your son talks to anyone, the family should consult a lawyer and have one present. The key to these situations is avoiding the filing of charges from the beginning, and since it's early in the process, that should still be the goal.
You want your grandson legally prepared and not in a position to incriminate himself.
If the family does not already have a criminal
defense lawyer in mind, the Nevada Bar Association's lawyer referral service can help. Their information can be found here
and their phone number is XXXXX (5747) and they are available between the local hours of 8:30am and 5:00pm.
If you have more questions please feel free to ask. I'll be happy to answer them. If you do not, please do remember to rate my service in assistance to you today.