Trying to snap a two-game losing streak, the Raiders flew to Qualcomm Stadium for a Week 10 AFC West duel with the San Diego Chargers on Thursday night.  Oakland trailed early in the first quarter as Chargers kicker Nick Novak got a 20-yard field goal, yet the Raiders answered with a 2-yard touchdown run from running back Michael Bush.  Oakland added onto their lead in the second quarter with a 23-yard field goal from kicker Sebastian Janikowski, followed by quarterback Carson Palmer finding rookie wide receiver Denarius Moore on a 33-yard touchdown pass. San Diego began the third quarter with quarterback Philip Rivers completing a 30-yard touchdown pass to wide receiver Vincent Brown, yet the Raiders struck back with Palmer hooking up with Moore again on a 26-yard touchdown pass.  Afterwards, the Chargers closed out the quarter with Rivers completing a 7-yard touchdown pass to fullback Jacob Hester.  From there, Oakland's defense held on to preserve the victory. With the win, the Raiders improved to 5-4, and took the lead of the AFC West.
Question: Who scored the first touchdown of the game?
Answer: Michael Bush