My pine snapped in heavy wind and looks gray beneath the bark. Was is diseased?

This pine tree was at least 50' and it snapped near the base in heavy wind yesterday. I always thought it was healthy until this and now I see it has a grayish patch on the bark and some black beneath the bark. I am curious what this is and if it could have caused the weak ess that allowed the tree to snap. It fell on a mature Sugar Maple and some other smaller woody plants. We will hire an arborist and a tree service. Insight and advice are needed. Location Central Maryland