Kansas City Chiefs players stand arm in arm during a moment of silence for victims of violence before an NFL football game against the Carolina Panthers at Arrowhead Stadium in Kansas City, Mo., on Sunday, Dec. 2, 2012. (AP Photo/Colin E. Braley)
** FILE ** In this Sept. 16, 2012, file photo, Kansas City Chiefs' Jovan Belcher (59) stands on the sidelines during an NFL football game against the Buffalo Bills in Orchard Park, N.Y. Police say Belcher fatally shot his girlfriend early Saturday, Dec. 1, 2012, in Kansas City, Mo., then drove to Arrowhead Stadium and committed suicide in front of his coach and general manager. (AP Photo/Bill Wippert, File)
** FILE ** In this Sept. 16, 2012, file photo, Kansas City Chiefs' Jovan Belcher (59) stands on the sidelines during an NFL football game against the Buffalo Bills in Orchard Park, N.Y. Police say Belcher fatally shot his girlfriend early Saturday, Dec. 1, 2012, in Kansas City, Mo., then drove to Arrowhead Stadium and committed suicide in front of his coach and general manager. (AP Photo/Bill Wippert, File)
** FILE ** In this Wednesday, May 19, 2010, photo, Kansas City Chiefs football players work out during an NFL football mini camp at the team's practice facility in Kansas City, Mo. Police say a 25-year-old Kansas City Chiefs player was involved in two shootings Saturday, Dec. 1, 2012, one of which occurred in the parking lot near Arrowhead Stadium. (AP Photo/Orlin Wagner)
** FILE ** In this Wednesday, May 19, 2010, photo, Kansas City Chiefs football players work out during an NFL football mini camp at the team's practice facility in Kansas City, Mo. Police say a 25-year-old Kansas City Chiefs player was involved in two shootings Saturday, Dec. 1, 2012, one of which occurred in the parking lot near Arrowhead Stadium. (AP Photo/Orlin Wagner)
** FILE ** Kansas City Chiefs coach Romeo Crennel looks at the clock during the first half of an NFL football game against the Denver Broncos at Arrowhead Stadium in Kansas City, Mo., Sunday, Nov. 25, 2012. (AP Photo/Ed Zurga)
**FILE** Kansas City Chiefs coach Romeo Crennel looks at the clock during the first half of the Chiefs' 17-9 loss to the Denver Broncos at Arrowhead Stadium in Kansas City, Mo., on Nov. 25, 2012. (Associated Press)
Denver Broncos quarterback Peyton Manning (18) passes during the first half of an NFL football game against the Kansas City Chiefs at Arrowhead Stadium in Kansas City, Mo., Sunday, Nov. 25, 2012. (AP Photo/Charlie Riedel)
Denver Broncos quarterback Peyton Manning (18) passes during the first half of an NFL football game against the Kansas City Chiefs at Arrowhead Stadium in Kansas City, Mo., Sunday, Nov. 25, 2012. (AP Photo/Charlie Riedel)
