Police in Hillsboro, Ore., a suburb of Portland, say two men were out walking a pink poodle when a stranger reportedly pulled a U-turn, jumped out of his vehicle and hit one of them in the head with a wrench.
Investigators are working to determine whether the incident, which occurred on March 1, could be a bias crime because the attacker reportedly shouted an anti-gay epithet.
Police spokesman Mike Rouches said the assault victim, a 26-year-old man, suffered a bump to the back of his head but did not require medical treatment.
Police arrested a suspect early March 2 near a Target store after finding a vehicle that matched the description provided by the victim. The suspect's wife was inside the vehicle and the suspect, identified as George Allen Mason Jr., 22, was found nearby on foot.
Mason faces charges of intimidation, assault, unlawful use of a weapon and reckless driving.
His wife was cited for interfering with police.