Answer based on context:

Looking to bounce back from a tough home-opening loss to the New York Jets, the Bills took on the first of their four NFC North rivals, the Minnesota Vikings. In the first quarter, Buffalo got a small deficit as kicker Ryan Longwell kicked a 37-yard FG for the only score of the quarter. In the second quarter, the Bills scored on an Willis McGahee 1-yard run. Afterwards, Minnesota got a last-second FG by Longwell, this one from 49 yards out. In the third quarter, Buffalo pulled ahead as J. P. Losman completed an 8-yard pass to Peerless Price for the only score of the period. In the fourth quarter, Rian Lindell kicked a 28-yard FG. However, Brad Johnson completed a 29-yard pass to Marcus Robinson, but Buffalo prevented the two-point conversion and ran the clock out, giving the Bills their first home victory of the year and improving to 2-2.

Who threw the longest touchdown pass of the game?
Brad Johnson