Dramatic 911 tape played at NYC officer’s manslaughter trial

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NEW YORK—There were dramatic and emotional opening testimonies in the manslaughter trial of Officer Peter Liang.

The prosecution said the Officer Liang "broke rule after rule” while patrolling Brooklyn’s Pink Houses with his gun out and his finger on the trigger— and that recklessness cost an innocent man his life.

Officer Liang had been trained “not to put your finger on the trigger unless ready to shoot,” Assistant District Attorney Marc Fliedner said during opening statements Monday.

“He recklessly ignored that rule, and that’s why we are here today.”

Liang, 28, is charged with manslaughter and criminally negligent homicide. The defense argued the shooting was a tragic accident.

The jury also heard a  compelling 911 call from a neighbor—the caller frantically asked the operator for help, the operator told the caller to get a towel and apply pressure to Gurley's gun shot wound.

The officer is expected to take the stand in his defense when the trial resumes on Tuesday.

 Liang faces up to 15 years in prison if convicted of manslaughter.