Baton Rouge police have arrested a second person in the June 29 shooting death of 19-year-old Ashley London, according to a Baton Rouge Police Department news release.

Police booked Preston Jerome Nelson, 27, 2682 N. Foster Drive, with first-degree murder and attempted first degree murder Tuesday, the release says.

The attempted murder booking is related to the uninjured woman who was also in the vehicle London was in when she was shot and killed, the release says.

A second suspect, a 16 year old, was arrested on Aug. 4 in the London killing, the release says.

The 16-year-old is accused of killing three people in Scotlandville within a month, police said.

The boy, whose name was not released because of his age, is accused of fatally shooting Kevin Bowie, 32, and Jessica Parker, 25, on July 29 while they were sitting in a vehicle in the 9100 block of Kingfisher Avenue, police spokesman Cpl. L’Jean McKneely has said.

Bowie and Parker were found inside a 1997 Ford Explorer parked in a grassy area near railroad tracks, police have said. The Explorer’s engine was running and the vehicle’s headlights were on.

A month earlier, on June 29, the boy allegedly shot 19-year-old London while she was sitting in a car in an apartment complex parking lot on Elm Grove Garden Drive, McKneely has said.

Another woman was in the car at the time but was not injured.

The motive for all three shootings might have been drugs, McKneely has said.

The boy was placed into Juvenile Detention on three counts of first-degree murder and one count of attempted first-degree murder.