Investigators say a 20-year-old Tennessee man had been drinking before he died in a fall at the Georgia Dome Friday night. Police Lt. Chad Hurston said Saturday that authorities need to review results from the medical examiner’s office to determine how much of a role alcohol played in the accident. Isaac Grubb fell about 45 feet inside the Dome while celebrating a Tennessee touchdown against North Carolina State. He struck and injured a 34-year-old man from Fort Mill, S.C., who suffered minor injuries. Hurston said that Grubb had started drinking around 5 p.m. before he entered the Georgia Dome. He said witness reports do not indicate that Grubb bought alcohol inside the stadium. Friday night’s game was the first of two to be played at the Dome this weekend. Fourteenth-ranked Clemson plays Auburn at 7:00 PM Saturday.