Answer based on context:

The Indianapolis Colts and New England Patriots set up for their rivalry game at Lucas Oil Stadium.  The Colts came in at 8-0 while the Patriots came in 6-2, both shooting for home field advantage during the playoffs.  The Colts struck first with a 15-yard pass from Manning to Addai.  However New England answered with 24 unanswered points in the first and second quarter.  The Colts finally got back into the game with a 20-yard touchdown pass to Reggie Wayne towards the end of the first half.  The third quarter was scoreless with the Colts still trailing by 10, but the Patriots started the fourth with a touchdown pass to Randy Moss with the Patriots now leading 31-14.  The Colts came back quickly scoring a touchdown, making it 31-21.  After a New England field goal, the Colts scored a touchdown on an Addai run.  The Patriots were still in the lead 34-28, however the Colts were hot with Peyton Manning ready to lead them to a win if the defense could hold the Patriot offense for one more drive.  With less the two and a half minutes remaining in the game, the New England Patriots were faced with a fourth and two on the Indianapolis 28-yard line.  Bill Belichick decided to go for it on a controversial play, where Brady threw to Kevin Faulk, who gained control of the ball behind the first down marker, forcing the Patriots to turn the ball over on downs. Having wasted their last time out on the preceding play and the play occurring before the two-minute warning, the Patriots couldn't challenge the ruling on the field. With a minute left Peyton Manning found Reggie Wayne for the touchdown to seal a 35-34 victory over the Patriots as the team improved to 9-0 and their winning streak continued with 17 games.

Who threw the first touchdown pass of the game?
Peyton Manning