That thought also immediately hit my mind when I heard about the DUI. That he might have been drunk, but this is possibly a self-medication related, due to likely pain issues, with prescription pain meds behind it. Anyone who's had, or knows someone who has had, back, spinal, or neural pain problems, let alone surgeries, knows this can be a very difficult situation to get through, for anyone.
Tiger's entire story has gone haywire. From hero to zero. Champion, to fraud. Family man, to sleeping with hookers. All the hyped comebacks resulting in setbacks and surgeries, now pain killers and an arrest with an awful mug shot.
It used to be almost fun to point fingers at him and chuckle. Now it's getting too real, and as you say, sad. I hope he finds whatever help he needs, as a human being.