Updated at 8:05 p.m. with new information about Sims turning himself in to the police.
Arlington police say Keshawn Sims has turned himself in and is now in custody for the death of 17-year-old Knoah Harlan, who was struck by a car on July 27.
Police issued an arrest warrant Monday for 22-year-old Sims on one count of murder.
Harlan was struck by a vehicle in the 2100 block of Highbank Drive on July 27. He was taken to the hospital where he later died.
The vehicle that hit Harlan drove away.
At the time, police said several people in two cars agreed to meet to fight at Bowie High School.
One car drove at the other, which had five people inside. They jumped out believing their car was going to be struck. Then the second vehicle swerved and hit Harlan.
