In the wake of the Sean Taylor tragedy, the Redskins will suit up this week to take on the Bills at FedEx Field.  The ‘Skins safety suffered a fatal gunshot wound early Monday morning and passed away on Tuesday at the age of 24.  The 5-and-6 Redskins will look to honor the defensive back with a win as they fight to keep their playoff hopes alive.  Washington fell 19-13 to the Tampa Bay Buccaneers in Week 12.  Jason Campbell threw for 301 yards and a touchdown but also had two costly picks and a fumble as the Redskins dropped their third straight game.  The Bills have dropped two straight following last week’s 36-14 loss to the Jacksonville Jaguars.  J.P. Losman threw for 211 yards with a score and two picks as the Bills dipped to 5-and-6 on the season.  Trent Edwards will start at QB for Buffalo this week.  Buffalo won the last meeting between the two clubs in 2004.