Coming off their road win over the Buccaneers, the Cowboys would play their very first regular season home game at the new Cowboys Stadium. With an NFL-record regular season crowd on hand, Dallas would play a Sunday night game against their NFC East rival, the New York Giants. In the first quarter, Dallas trailed early as Giants kicker Lawrence Tynes got a 30-yard field goal.  Dallas responded with running back Marion Barber getting a 2-yard touchdown run, but New York retook the lead as cornerback Bruce Johnson returned an interception 34 yards for a touchdown.  In the second quarter, the Giants added a Tynes 28-yard field goal to make the score 13-7.  The Cowboys responded with a 1-yard Tony Romo touchdown pass to tight end Jason Witten, yet New York went back on top as quarterback Eli Manning completed a 22-yard touchdown pass to wide receiver Mario Manningham, this pass however was juggled but still ruled as a touchdown.  Dallas closed out the half as kicker Nick Folk made a 47-yard field goal. The Cowboys would regain the lead in the third quarter as Romo ran for a 3-yard touchdown.  However, in the fourth quarter, the Giants again got the lead as Manning completed a 22-yard touchdown pass to wide receiver Steve Smith, followed by Tynes kicking a 36-yard field goal. Dallas responded with a 7-yard touchdown run from running back Felix Jones. The Giants would respond with a game-winning drive capped by a Lawrence Tynes field goal with no time left to seal a Giants victory and hand the Cowboys their first loss in their new stadium
Question: Who scored the first touchdown of the game?
Answer: Marion Barber