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Mayor Booker calls the deadly shooting of an off-duty police officer a "heinous act of unspeakable evil."
A viewing will take place Wednesday night for an off-duty Newark police officer who was killed in a drive-by shooting.
Officer William Johnson was standing at the counter of a fast-food restaurant trying to get a slice of pizza when he was shot along with two other people last Thursday.
Authorities have charged 19-year-old Rasul McNeill-Thomas with murder and aggravated assault. Police have been searching for a second suspect.
The slain officer grew up in Newark and worked in the police department's video surveillance unit. He was a 16-year veteran of the police force.
The 45-year-old is survived by two daughters.
Johnson's funeral will take place in Union on Thursday.