There was an interview with him and Joe Perry together in a recent issue of Classic Rock mag. The interviewer asked him how long did he think he could go on performing. Johnny's answer was "As long as I can I suppose". That's just weird.
Sad to see him go though. He played a mean guitar.
I used to be with it, but then they changed what "it" was. Now what I'm with isn't it, and what's it seems weird and scary to me, and it'll happen to you, too.