George Steinbrenner Dies of Heart Attack 9.39K Hamilton Nolan 07/13/10 08:42AM Filed to: Breaking Breaking George Steinbrenner Health Yankees Death Sports NYC Appic Yankees owner George Steinbrenner has reportedly had a "major heart attack" in Florida. A "high-placed source" with the Yankees tells the New York Daily News that Steinbrenner has died. UPDATE: The AP also says he's died.