Jefferson Parish Sheriff's detectives were investigating a body that was dumped on a Metairie street Tuesday afternoon, a spokesman said.
A call came in around 3:50 p.m. in reference to the body, which was that of a young black man, Sheriff Joe Lopinto said.
Responding officers found the man, who has not been identified, dead in the 2300 block of N. Arnoult Road between West Napoleon and Interstate 10, Lopinto said.
Witnesses said the man's body was pulled from a car that then drove off, Lopinto said.
Lopinto said the victim appeared to have been shot at least once in the head, though it will be up to the coroner to determine an actual cause of death.
Danielle Levy, a doctor, said she happened upon the scene and saw what she discovered to be a body as she drove along North Arnoult.
"I noticed what looked like clothing in the middle of the street," she said. "When I got closer, I noticed that it was a body." The man was lying face down in the street, wearing pants pulled low and green underwear, a t-shirt and a sweatshirt, she said.
Levy said she got out and felt for a pulse or any other vital signs. There were none, she said. There was a "puddle of blood" near the man's head, she said. Some of the blood was clotting, cause Levy to believe that some time had passed since he had been shot.