There are a few possibilities. Perhaps he possessed identification documents for other people and opened credit cards and/or bank accounts. Or he was using cloned credit cards. Not sure. Every State has different laws when it comes to grand larceny/ID fraud and they are worded differently.
I read more that says he and his friends were breaking into cars, stealing credit cards, and using them to order stuff. Sounds like a really great kid. His mother is worth at least a couple million and he’s stealing from people. F him.