He finished the game completing 16 of 31 passes for 199 yards with three touchdowns and no interceptions - and moved to 8-5 since inheriting the Gamecocks' starting quarterback job midway through the 2016 season.
It was Brunson's first-career fumble recovery and touchdown.
Matt Jones, Arkansas's starting quarterback from 2002-2004, is pretty much done with Bret Bielema after the Razorbacks' blowout loss at SC.
"It was quite weird at first, but I got used to it", Williams said of playing against his old teammates.
Bentley capped the drive with an 18-yard touchdown pass to Edwards, twisting high in the air for a jump ball in the back right corner of the end zone four seconds before halftime.
A sack of Allen by Dante Sawyer on the Razorbacks' next drive jarred the ball loose, and linebacker T.J. Brunson raced 73 yards with the recovery to make it 34-10 SC.
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An investigation also concluded Weinstein settled at least eight sexual harassment lawsuits over the span of those three decades. The source said The Weinstein Company board of directors has pressured Weinstein to step down from the company he helped create.
The Gamecocks broke a 10-point game open in the third quarter.
"We just have to have a complete game each week", linebacker Skai Moore said.
Three touchdowns from the defense isn't likely to be a formula the Gamecocks can duplicate in the coming weeks, but Saturday it was exactly what they needed.
SC quarterback Jake Bentley threw three touchdown passes while completing 16 of 31 pass attempts for 199 yards.
Arkansas sophomore backup defensive end Briston Guidry, who had three tackles in the first four games, didn't travel with the team to SC.
Rico Dowdle had his best game of the year, running hard on 11 carries for 61 yards and looking like the weapon he was down the stretch last season.
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But the Tigers were bailed out on a third down later in the drive when Gators cornerback Duke Dawson was flagged for holding. Running backs Malik Davis and Perine did most of the heavy lifting, but when Florida needed Franks to step up, he didn't.
A loss would have left the Gamecocks "Free Fallin'" toward the second half of the season.
"Inexcusable coaching is what it is", Muschamp said.
It's probably not what David Williams had hoped for in his return back to Williams-Brice Stadium.
"No, that was dumb (bleep)", Muschamp said.
The Gamecock team that left College Station in a shroud of doubt is back on track to win seven or eight regular-season games.
The Razorbacks joined the club when sophomore walk-on Connor Limpert hit a 48-yard attempt to tie the game 3-3 in the first quarter. Had Williams not stepped out of bounds, that reception could have also been a touchdown for the Razorbacks. The Taxslayer, Citrus and Orange bowls had reps to watch the game.
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Finally, if necessary, Jake Arrieta will start in Game 4 on Tuesday. "He had that same look", said Baker, with a grin Thursday. Goodwin hasn't played for the Nationals since mid-August because of groin injury that caused him to go on the disabled list.
Certainly no need to adjust the added swagger the SC defense gained Saturday.