chris cuomo and alisyn camerota here, we do begin with breaking news, there's been another police shooting near ferguson, missouri, sparking tensions there. but this time, a weapon was involved and it was pointed at a police officer on patrol. >> officials tell cnn after the teenager pointed the handgun, the officer fired his gun and killed the teenager, police say the teenager's gun was recovered at the scene and the site of the shooting has turned volatile overnight as protesters have gathered and confronted officers, for the latest, let's get to sarah again nam on what's happening on the ground. >> it happened about 11:15 last night in berkeley, missouri, two miles from ferguson. an officer on routine patrol approached a gas station, saw two men at side of the building, approached them, one pulled a handgun, pointed it at the officer and the officer fired several shots in self-defense.