DETROIT — A man hit a deputy in the head, knocking her unconscious Friday at the security-screening area of a courthouse in downtown Detroit, authorities said.
Deandre Wilson, 29, of Westland, Mich., was immediately arrested and Crystal Dominguez, a deputy with seven years' experience, was taken to Detroit Receiving Hospital, said Lt. Gerard Pryor of the Wayne County Sheriff's Office.
Wilson is accused of assaulting a police officer in Taylor, Mich., about five weeks earlier, and he was free on bond when he entered the Frank Murphy Hall of Justice at about 9:10 a.m. ET with a social worker for a hearing in the case.
He had taken off his jacket to go through security, and shortly after putting it back on, he hit Dominguez one time with an open hand. It's unclear whether the strike knocked Dominguez out because she hit the ground, Pryor said.
All protocols apparently were followed, and other deputies at the scene immediately subdued Wilson, Sheriff Benny Napoleon said.
"The person just randomly attacked her, and I don't know what different we could've done," he said.
The courthouse was put on immediate lockdown but since has reopened. Pryor said Wilson wasn't found to be carrying any prohibited items, and the attack was unprovoked.
The alleged assailant now faces another charge of assaulting an officer.
Napoleon said he and his staff can't recall any previous incidents like this happening in the courthouse screening area, which is just inside the entrance and heavily guarded. But he said law-enforcement officers are at risk of attack every day.
"You never know where an attack will come from and when," he said.