-- A man questioned in a spate of shootings on Interstate 10 near Phoenix isn't the prime suspect, police said today.
Munoz, 19, of Avondale, was taken into custody along with his mother Friday morning at a gas station a few miles from I-10, officials said. His mother was later released.
"This is an open investigation, and we are going to go where it leads us," Arizona Department of Public Safety spokesman Bart Graves said.
At least 11 shootings along I-10 have been reported since last month. The scenarios have varied with some involving bullets fired at random cars and others possibly involving BBs or pellets, said investigators.
"When I say 'domestic terrorism,' I don't know what else you would call it. When you're, you know, inflicting terror on a community, what else is it?" he said. "These are bad people trying to do harm to good people."
The shootings dated back to August 29, and all happened along an eight-mile stretch of road, Milstead said.
"We have a hard crime to solve because it's such a large area and there so many different vantage points for someone who wants to do something wrong," Milstead said.
The Associated Press contributed to this report.