The Panthers (4-4), whose previous four games resulted in two overtime losses, a last-second win and a last-second loss, led 62-47 with 7:12 remaining. But they didn't score for the next 4:15 and the Rattlers (5-6) scored 13 straight points to trail 62-60.
Amin Stevens, who led the Rattlers with 25 points and 11 rebounds, had six during that run.
Ali's 3-pointer with 2:57 left made it 65-60 Georgia State. Eric Buckner blocked a Florida A&M shot and dunked on the Panthers' ensuing possession after grabbing an offensive rebound to make it 67-60.