A group of juveniles allegedly used gasoline to desecrate the front lawn of the Arizona house of Donovan McNabb, where the Eagles' quarterback and his wife, Roxie, live with their children over the offseason. According to a friend of Mrs. McNabb?s, ?Go Cards? and other similar messages were burned into the front lawn one night last week. Apparently one of the culprits was identified after leaving a box at the scene with a mailing label affixed bearing his name and address.