NEWARK - A 19-year-old man has pleaded not guilty to charges stemming from a drive-by shooting that killed an off-duty Newark police officer .

Rasul McNeill-Thomas faces first-degree murder charges in the death of officer William Johnson.

McNeill-Thomas also is charged with two counts of aggravated assault, carjacking conspiracy and weapons offenses. Police believe a second suspect was the shooter. No one else has been arrested.

The 16-year police veteran was waiting for his order at a neighborhood pizza place when he was shot. Two other people were wounded.

McNeill-Thomas remains in the Essex County Jail in lieu of $1.5 million bail.

Fallen Newark officer's loved ones speak with News 12 NJHundreds attend funeral for Newark police officer William JohnsonFuneral service planned for Newark police officerFamily of man accused of killing Newark police officer in shock