I PM'd to see if he's up for visitors. He's had some major surgery. A large portion of his colon was removed. He had polyps removed last month but I believe that was preventative and they proved to be benign.
It was my understanding that this section of colon simply collapsed or contracted restricing normal operation. Prior to surgery the doctors didn't have an answer as to why.
I'll see if I can call later today as well.
Prayers go out to Jim for some quick healing.