Instagram /@vortex.hz
A gang of motorcycle riders briefly took over downtown Philadelphia this past weekend … and one pistol-packin’ hooligan put a mom and her kids in his violent crosshairs.
Dozens of bikers rolled through “The City of Brotherly Love” Sunday night, stopping traffic and causing a total ruckus.
Check out this video … which shows all the chaos as it unfolds and the armed troublemaker getting off…