Pulling his hand away and placing it on his "weapon", Alex quickly turned to orient himself towards the distinct sound of gunfire. The dullness to the sound made him think the weapon probably had a suppressor of some sort, but it was practically impossible to make a rifle actually shoot silently. At a distance he would have had a hard time trying to pin point exactly where the shot had come from, but it was rather easy when it sounded like the shot was so close. That and the fact that a Walker on the street seemed to have changed its path from the still sounding car alarm to, what he assumed was, the rifle lady. "Well, that's a somebody I guess. You don't have to come along, but I'm going to try and help out. Don't want her bringing down more Walkers with every shot now." With that, he moved out towards the street quietly, aiming to sneak up behind the Walker that'd just passed by and bash its skull in from behind.