Keystone Deaths attributed to Heart Problems

Summit County—(AP) – Authorities say two men who died just days apart while skiing at Keystone Resort both suffered a heart-related problem. The Summit County coroner’s office released the causes of the deaths Thursday but didn’t provide specifics.Β  53-year-old Daniel Mares of Arvada died Dec. 22 and 66-year-old Durwood Marshall of Silverthorne died Christmas Day.