For what it's worth, I'd like to send my condolances to the Cowher family for the loss of Kaye. It is a horrible tragedy for any family to lose one of its own and it definitely brings things into prospective.
Unknown to many, Kaye Cowher had been battling skin cancer. This was actually one of the big reasons Bill stepped away from coaching after winning the Super Bowl. He moved with his wife and daughters down to North Carolina in 2007 and began his post NFL career as an analyst for CBS.
Here is a good write up about Kaye in the Post Gazette.