NEW ORLEANS — New Orleans police said they are looking for a fourth person in a Bourbon Street shooting the Saturday before Mardi Gras.

Police said in a news release that the man may have “critical information” about the Feb. 9 shooting, which sent four people to a hospital, a police department news release says.

Police released a video of the suspect.

He appears to be a light-skinned black man with a full beard and closely cropped hair. Only the man’s head is visible.

Police believe the man might go by the name of “Brandon,” “B Money” or “B” and could be driving a 2006 four-door silver or gray Chevrolet Impala, the release says.

The man is believed to possibly reside on the West Bank of Jefferson Parish, either in Marrero or Harvey, the release says.

Three people accused in the shooting already have been arrested: Malcolm “London” Hall, 19; Deron Bridgewater, 23; and Brandon Brown, 21, of Marrero.

An argument led to two men and two women being wounded in the 400 block of Bourbon, police have said.

Anyone with information about the latest suspect’s whereabouts is asked to call police at (504) 658-4000 or CrimeStoppers at (504) 822-1111 or toll free at (877) 903-STOP (7867).