Breaking News: Shooting at a Las Vegas Federal Building Kills 2 including a Federal Marshal and Injures 1

A court security officer and Deputy U.S. Marshal were shot when gunfire broke out in the lobby of the Lloyd George Federal building in downtown Las Vegas around 8 a.m. One witness reports there appeared to be at least four suspects exchanging gunfire with the federal agents. Much of downtown Las Vegas is closed to traffic and some buildings are on lock down. For more details as they emerge on this breaking news story, go to