Yes, it is sad. He really was a lot of fun to hang out with.
I taught him how to ride a motorcycle after he left KIDS, and I still remember the look on the test examiner at the DMV when Jeff missed a turn and rode right off the course and onto the grass, but then kept going and still finished the test.
I told the examiner that this showed that he was a really good rider that he could recover so well; amazingly, he let Jeff pass.