I think you nailed it, he is likely not a citizen and should not have been registered to begin with. I bet he does have identification- likely one set for his country and another, or more than one set- likely bogus set for the U.S. His issue probably isn’t that he has no identification, he probably has too much.
I bet this perp is an illegal alien. Surely, there is one asshat moonbat LIB who in 83 years would drag his alien butt into a county office to get an official ID if the absence of an ID was the only problem. Stop the sob stories.