As Arizona police question a man regarding the serial freeway shootings that have rocked Phoenix over the last two weeks, the “Bolt Force” citizens’ patrol, dressed all in black and armed with semi-automatic weapons, has begun searching for the gunman. Police took a man into custody on Friday as a “person of interest,” but no arrests have been made yet, despite a $20,000 reward.

There have been 11 reported attacks since the sniper or snipers began shooting along Interstate-10 on August 29. Phoenix drivers have been unnerved since then, a situation that prompted four members of a “vigilante” group called Bolt Force to start foot patrols on Wednesday in the hope of finding the culprit. They spent the night walking the neighborhoods, looking for shell casing and spots where a sniper could hide and shoot. FULL REPORT