3 NYPD officers were responding to a routine 911 call on domestic violence in the deadly Harlem apartment shooting

A routinely 911 call on a domestic violence case drove three young NYPD police officers to an apartment in Harlem on Friday night.

The police officers were responding to the plea of a mother who was verbally threatened by her son.

As two of the police officers made their way down a cramped hallway toward the open door, one behind the other, the lead officer called the son’s name.

The third police officer stayed back to collect information from the family.

The son appeared in the bedroom doorway and suddenly fired a gun surprising the two police officers.

The gun fired by the son later identified as Lashawn McNeil killed Officer Jason Rivera, 22, and gravely injured his partner, Wilbert Mora, 27.

Hearing the gunfire, the third police officer shot the suspect twice, in the head and the arm.

The suspect was still brought to a local hospital where he later died.

Sources said the shootings are the fourth among New York City police officers in the line of duty in the last week.

PBA (Police Benevolent Association) President Patrick Lynch made an impassioned plea for the public to “send a message” and turn out for the funeral of fallen rookie NYPD Officer Jason Rivera.