Marvin A. Coleman Jr., 21, was indicted yesterday by a Burlington County Grand Jury on one count of first-degree felony murder, first-degree murder, first-degree robbery, second-degree possession of a weapon for an unlawful purpose and second-degree unlawful possession of a weapon.

MOUNT HOLLY — A Willingboro man has been indicted on murder charges for shooting and killing a 21-year-old Lindenwold woman in her car earlier this year after arranging a meeting to purchase a used cellphone, the Burlington County Prosecutor's Office announced Tuesday.

On the morning of March 7, police discovered Maribely Lopez dead from a gunshot wound to the head in the driver's seat of her Ford Focus, parked with the engine still running on the first block of Medley Lane in the Millbrook Park neighborhood of Willingboro.

Investigators said Lopez was shot around 11 p.m. the night prior by Marvin A. Coleman Jr., 21, of Willingboro, after Coleman had made arrangements on March 6 through the marketplace app OfferUp to purchase the phone from Lopez.

According to the prosecutor's office, Coleman and Lopez agreed to meet in front of a house on Medley Lane, which was close to Coleman's home on Marboro Lane. Coleman shot Lopez through her partially opened driver's side window, the prosecutor's office said.

The phone was discovered by investigators inside the car.

Coleman was indicted Tuesday by a Burlington County Grand Jury on one count of first-degree felony murder, first-degree murder, first-degree robbery, second-degree possession of a weapon for an unlawful purpose and second-degree unlawful possession of a weapon.

If convicted, Coleman could be sentenced to life in prison. An arraignment will be scheduled soon in Superior Court in Mount Holly.

Burlington County Prosecutor Scott Coffina urged people selling items online to strangers to utilize safe transaction zones offered by many local police departments.