The state Supreme Court agreed Wednesday to decide whether a former Bay Area man who is dying of an asbestos-related cancer can sue a company that employed his uncle, who used to come home with his clothes covered in asbestos dust. A state appeals court had ruled in May that Johnny Kesner, diagnosed in 2011 with a terminal form of mesothelioma commonly caused by asbestos, could sue his uncle's former employer, Abex, which made brake linings filled with asbestos.