EMBED >More News Videos Christopher Bradley telling ABC13 he feared for his safety while chasing teen robbery suspect. One of his shots, though, struck a 6-year-old girl.

EMBED >More News Videos The father of a little girl who was shot during a Houston robbery described what happened after they realized she had been hit by a bullet.

EMBED >More News Videos 6-year-old girl takes first steps after being hit by stray bullet during robbery

EMBED >More News Videos BACK AT HOME: Little Claire Tidwell will continue with physical therapy while using a walker to get around.

HOUSTON, Texas (KTRK) -- A security guard, who opened fire at a robbery suspect but hit a 6-year-old girl, told ABC13 that he thought the person he aimed for was pulling a gun when he reached in his pocket.Christopher Bradley spoke only to Eyewitness News on Friday after he was charged with aggravated assault.Authorities said his stray bullet grazed 6-year-old Claire Tidwell outside of a T-Mobile store. The girl, who was hospitalized and later released, was waiting in a vehicle in the drive-thru of a nearby McDonald's."Once he jumped back, I jumped back, and there he go tryna hurry up and take it out his pocket," Bradley recalled. "So it was either gonna be him or me, so I had no choice."He estimated he fired five or six shots.Meanwhile, the family of 18-year-old Ernest Hudson, who was Bradley's target, wants the security guard charged with attempted murder, insisting the teen was not armed and he was not stealing."This off-duty quote-unquote 'robo cop' security guard, when he shot Mr. Hudson, this young 18-year-old fell to the ground and he continued to shoot him like you should shoot a dog," said community activist Quannel X, who spoke outside the store Friday on behalf of the teen's family.Hudson remains in the hospital, and his family says he may not survive his wounds.