Four armed men spent Wednesday night walking through a neighborhood that runs parallel to Interstate 10 near 35th Avenue, with the goal of finding whoever is shooting at cars along the freeway.
Arizona Department of Public Safety detectives are investigating 10 shootings along Valley freeways since late-August, with most incidents happening along the I-10.
"I don't want to see anyone killed or hurt," the group's leader, who goes by "Bolt," said.
Several members of what's called the "Bolt Force" work as bounty hunters, and all four are on a volunteer patrol Wednesday night. All four are also military veterans.
"We'll be in the shadows at night and hopefully we can surprise somebody," Bolt said.
Bolt Force members looked under bushes, inspected the wall that borders the I-10, and walked past potential hiding spots near the freeway.
The group stayed on the neighborhood side of the wall that forms the I-10's border. Freeway drivers could not see them.
DPS, when asked about volunteers like the Bolt Force, said the agency would prefer that the investigation is left to their detectives.
Bolt said that he and his members are simply trying to help.