No one in the group of men outside the Kings Convenience Store on Frankford Avenue Thursday night seemed to notice the man in the medical mask who strode by them.
Until he turned and opened fire with a 9mm handgun.
Surveillance video recovered by police shows how a casual moment outside a convenience store that turned deadly as the still-unidentified gunman killed one man and wounded five others — and sparked a running gun battle that littered the street with nearly 50 bullet casings.
One of the men targeted by the gunman fired back, chasing him down a nearby side street.
Meanwhile, neighbors huddled with their children on their living room floors to avoid stray shots.