Andre Maurice Hill, 47, was in the garage of a house on Monday night when he was shot several times by a police officer who had been called to the scene for a minor incident.
Ahmadis repeatedly have been targeted by Islamic extremists in the time since in this Muslim-majority nation, drawing condemnation from human right groups.
The two had apparently gone out for dinner and it was on their way back that the incident took place.
The accused, Pradeep Khokar, parked his car outside a building and went to its parking area in ground-floor where Deshwal was sitting with his friend, a senior police officer said.
The southeastern Wisconsin city became the nation's latest flashpoint in a summer of racial unrest after cellphone footage of police shooting Jacob Blake
The victim told police in the Seattle suburb of Kent that the shooter is 6-foot-tall, white and has a stocky build and was wearing a mask covering the lower half of his face.US