Story highlights Former New York City police Officer Peter Liang will not serve jail time for shooting death

Liang was convicted of manslaughter and official misconduct in February in the shooting of Akai Gurley

Judge Danny Chun reduced his manslaughter conviction to criminally negligent homicide

New York (CNN) Former New York City police Officer Peter Liang will not serve jail time in the 2014 shooting death of Akai Gurley in a New York housing project.

Liang was sentenced to 800 hours of community service and five years' probation Tuesday after Judge Danny Chun reduced his manslaughter conviction to criminally negligent homicide in the shooting death of Gurley, 28, who was not armed.

Liang, 28, was found guilty of manslaughter and official misconduct in February for shooting Gurley in the stairwell of a Brooklyn housing project.

But Chun said that for manslaughter to stand, the prosecution had to prove that Liang not only "created a substantial and unjustifiable risk that a death would occur" but also that the the officer "was aware of and consciously disregarded that risk."

"There is no evidence either direct or circumstantial that the defendant was aware of Akai Gurley's presence and still disregarded any risk by firing the weapon," Chun said. "The evidence showed that it was a quick reaction to perhaps a sound, which in my opinion only amounts to failing to perceive a unjustifiable risk."

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