PHOENIX — A Surprise man is accused of manslaughter for allegedly driving impaired and causing a fatal freeway crash in Glendale.
Authorities say 52-year-old David Matthew Falco had a blood-alcohol level of .167 percent in preliminary tests conducted three hours after Tuesday night's crash on Loop 303.
That's more than double Arizona's legal limit of .08 percent for drivers.
Authorities say 42-year-old motorcyclist Shawn Sather of El Mirage died at the scene and wasn't wearing a helmet.
Falco wasn't injured in the crash.
Arizona Department of Public Safety troopers arrested Falco on suspicion of driving under the influence after observing several visual clues of impairment.
He's being held on suspicion of manslaughter and reckless endangerment.
Bond was set at $50,000 at Falco's initial court appearance Thursday. He doesn't have a lawyer yet.