Gibbs, who completed 18 of 38 passes, threw touchdowns of 23 and 9 yards in the first half as the Braves (4-6, 4-4) took a 14-10 lead into halftime.
After Walker's first rushing touchdown put Alcorn State back ahead 21-17, Johnson broke a 46-yard run to give the Tigers a 24-21 fourth-quarter lead.
But Alcorn was not finished, as Walker's second touchdown, this time from 1-yard out, swung the lead back into Alcorn State's favor, 27-24, and Gibbs' third touchdown pass put the game away.
CHARLOTTE, N.C. -- Coaches and players convened for the opening of the 2016 ACC Kickoff, and the event began with a bang with the announcement of an ESPN-backed ACC Network.
At Day 1 of the ACC Kickoff, some players need extra work on their fashion game.
Would Nebraska consider going back to the Big 12? Kansas State coach Bill Snyder thinks so, but there's a lot of evidence to the contrary.
Alabama athletic director Bill Battle is returning to work after two years of cancer treatment.
Andre Ware and Butch Jones doesn't think it makes sense to eliminate kickoffs in college football.
ESPN college football Insider Phil Steele explains why Michigan is the most popular bet in Las Vegas to win the national title, but says Washington might be the smart bet.
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