A wealthy Portland businessman fatally gunned down a man Wednesday in the heat of a road rage battle — and then turned the weapon on a bystander who dared to film the murder, according to a report.

The eerie image captured Geoffrey E. Hammond, 46, pointing the firearm at Samuel Gomez from the safety of his Mercedes with victim Ryan Martin lying dead on the street.

Hammond allegedly fired two shots at Gomez, striking him once in the leg, before peeling out.

“He got the gun loaded and he just straight looked at me and then, as you can see in the picture, just popped me,” Gomez told The Oregonian.

The unbelievable encounter unfurled in the city’s downtown area when Hammond — who owns the financial company Aequantium — stopped his Mercedes Benz SUV in front of the Moxy Hotel on Southwest Alder so that it was partially blocking traffic.

Martin, 47, pulled up behind him and tried to encourage Hammond to move, but the two “exchanged middle fingers” as Martin drove around Hammond,” according to an arrest affidavit.