Actually, Spellman was a little bit off from day one. He is a VERY imposing figure, or at least he was during his Ohio State days and the beginning of his career with the Bears. I had a few short personal interactions with him during Bears training camps. He was always reserved and gave off a weird vibe. Hopefully he will receive treatment and be able to overcome his illness.
His antics are well-documented. Here are some links:
The Kids He Left Behind
Kids...Part II
Ex-Lion ends odyssey in arrest
Spellman Terrorizes Flight