Answer based on context:

Coming off their bye week, the Steelers stayed at home, donned their throwback uniforms, and played their Week 6 AFC North duel with their archrival, the Cleveland Browns, as quarterback Ben Roethlisberger made his season debut following his four-game suspension. Pittsburgh trailed in the first quarter as Browns kicker Phil Dawson got a 39-yard field goal.  The Steelers answered in the second quarter as Roethlisberger found wide receiver Mike Wallace on a 29-yard touchdown pass. The Steelers added onto their lead in the third quarter as Roethlisberger connected with wide receiver Hines Ward on an 8-yard touchdown pass.  In the fourth quarter, Pittsburgh continued its dominating day as running back Rashard Mendenhall got a 2-yard touchdown run.  Cleveland tried to rally as quarterback Colt McCoy completed a 12-yard touchdown pass to tight end Benjamin Watson, but the Steelers pulled away as Roethlisberger connected with tight end Heath Miller on a 14-yard touchdown pass.

Who scored second quarter?
Roethlisberger