I'm going to assume she had melanoma, and someone who knows first hand how nasty this cancer is(My mother is currently battling it), it is something extremely difficult to deal with as a family. I have gained a large amount of respect for coach Cowher for his decision and offer my deepest condolences to him and his daughters. The only comfort you can try and take from this is realize she is no longer in pain and hope there is a heaven and hell and she is now in a much better place. I'm sure she was a beautiful person and the world is not a better one with her loss.