May 28, 2013 5:00 pm Doug Kammerer Introduces NBC4's Storm Team 4X4 Chief Meteorologist Doug Kammerer Tuesday introduced the Storm Team 4X4 vehicle, a new tool News4 meteorologists will use to track severe weather throughout the DMV viewing area. Local 0:40 Man stabbed to death near Audi Field in DC 1:37 Pro-Palestinian protesters gather outside White House correspondents' dinner 0:43 American University locked down before man arrested on campus 3:08 Family holds memorial for brothers, 3 and 6, who died after Clifton house fire 2:05 ‘People immediately hit the ground': 6 hurt in shooting outside DC nightclub