This story was updated on Feb. 25, 2012.
Police are looking for anyone who witnessed a hit-and-run that killed a pedestrian in Rockville Saturday morning.
Montgomery County police and fire rescue officials arrived at the intersection of Norbeck and Westbury roads at 3:24 a.m. after a driver noticed a man lying in the eastbound lanes of Norbeck Road just east of Westbury and called 911, said county police spokesman Capt. Paul Starks.
The caller tried to revive the victim, 24-year-old Bethesda resident Alonso Rodriguez, but Rodriguez was pronounced dead after rescue personnel arrived.
Police said Rodriguez, who was wearing a black jacket and dark blue jeans, had been out with two friends when, at about 2:20 a.m., the car he was riding in stopped on Norbeck Road near Westbury Road and Rodriguez got out. The male driver and a female passenger then continued to drive east on Norbeck Road, according to a Montgomery County police press release.
Detectives remain uncertain when and under what exact circumstances Rodriguez was struck, but he was not found in a crosswalk, Starks said.
"It's going to be east of that intersection with Westbury and I don't know if there's any crosswalks in that area," he said. "There is a crosswalk at Norbeck Road and Bel Pre Road but I don't think there are any more [nearer the scene]."
Experts from the Montgomery County police's Collision Reconstruction Unit are investigating Rodriguez’s death, Starks said.
"He got hit by a car; we're trying to find out why and we need people who were in that area to call and help us find out what happened," Starks said, emphasizing the need for anyone who was in the area to call, even if they did not witness the hit-and-run itself. "They may have seen something and not even realized it."
The Collision Reconstruction Unit can be reached at 301-840-2435. Callers can ask to remain anonymous.