Prosecutors have charged a fourth person in the fatal shooting of a central New Jersey man who was gunned down this summer during a crowded house party.

Chris Ryan, Getty Images

Twenty-one-year-old Tarique Holmes of Bayonne initially faced weapons charges when he was arrested earlier this month. But further investigation led Middlesex County authorities to accuse him of conspiracy in the murder of Randal Teron Smith, a 20-year-old South Amboy man who was killed outside a Sayreville home on July 21.

Prosecutors announced the charges against Holmes on Wednesday. He's being held on $1.6 million bail, and it's not known if he has retained a lawyer.

Three other men also face conspiracy to murder and hindering apprehension charges in the slaying.

A motive for the shooting has not been disclosed.

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