from a stunned citizen witnessing specialist scott mcmanis, officer zachary sterbling and officer eric kohler confront paul gaston on harrison avenue. avenue. to determine, our officers responded appropriately according to their training." training." police say it begins with a 911 call from gaston's girlfriend claiming he's acting oddly. "there's a man out there waving a gun and there's kids there." there." minutes later, a security camera captures gaston crashing his truck into a utility pole at harrison and boudinot avenues. gaston staggers up harrison avenue toward cheviot and he's armed. armed. "he exited the car, stumbled out, dropped a gun and then picked up the gun and then took off." off." police confront gaston just inside cheviot and the driver holding this phone hears officers order him to his knees -- then to lie flat on the ground and reacts. reacts. "please do what you're asked. please. back up. do what they say. back up." up." that didn't happen. happen. "as he initially starts to go to the ground, he raises up, with his right hand reaches to reasion of the officers, they fire