This post has been updated.

Fairfax City police were questioning a person connection with an early Saturday morning hit and run accident that killed a 62-year-old man crossing Fairfax Boulevard, according to authorities.

The victim was identified as James Ralph Davidson, of no fixed address.

A motorist witnessed the accident, followed the suspect’s vehicle and was able to give police the license plate number and a description of the driver, police said.

Sgt. Joe Johnson, a spokesman for the Fairfax City Police Department, said authorities in Arlington County found the vehicle, a silver 2010 Jeep Compass, which he described as badly damaged.

Johnson said detectives were interviewing a person Saturday morning. He would not say if that person is the owner of the Jeep or the suspected driver. He said police planned to obtain a search warrant for the vehicle before deciding whether to file charges.

Police said Davidson was trying to cross Fairfax Boulevard, also known as Route 50, from north to south about 1 a.m. when he was struck in the eastbound lanes approaching Old Lee Highway. That stretch of road has no crosswalks or traffic signals, but Johnson said it is well lit. The road is five lanes in each direction.

Johnson said the driver of the Jeep hit Davidson and continued heading east. He said investigators have not determined how fast the Jeep was traveling; the speed limit is 35 mph.

He said Davidson was pronounced dead on the scene. Johnson said it took officers several hours to reach family members. Davidson had a driver’s license that listed an address in Arlington County, Johnson said, but he no longer lived there.