Following their road victory over the Cardinals, the Broncos went home for a snowy Christmas Eve fight with the Cincinnati Bengals.  In the first quarter, the Bengals struck first with RB Rudi Johnson's 6-yard TD run.  In the second quarter, Denver struck back with QB Jay Cutler completing a 1-yard TD pass to rookie TE Tony Scheffler and a 39-yard TD pass to WR Javon Walker.  However, Cincinnati responded with kicker Shayne Graham's 46-yard field goal and QB Carson Palmer's 11-yard TD pass to WR Chris Henry.  In the second half, the Broncos took the lead with RB Mike Bell's 2-yard TD run in the third quarter and kicker Jason Elam's 24-yard field goal.  Late in the game, the Bengals almost tied the game with Palmer completing a 10-yard TD pass to WR T. J. Houshmandzadeh.  Fortunately, a botched snap resulted in failed PAT, giving Denver a one-point win.  With the win, the Broncos improved to 9-6.

Based on the above article, answer a question. Who scored the only field goal in the first half?
Shayne Graham