From what Chris Vernon says on the radio, Jarnell skipped school his entire junior and senior year. He did a radio bit where he would have people call in if they saw Jarnell out and about during school hours, and he was hardly ever at school. It was the running joke on Memphis radio for a while.
You sure about that 4.0? Maybe the kid was just that smart that he could never go to school, and I only have opinions on it from what I heard on the radio, but I would be surprised if he had a 4.0. Could just be gossip that I bought into though I guess.