Chilling moment crazed neighbor executes father Bladimy Mathurin and his step-son after noise complaint in hallway of Brooklyn apartment building where Barbra Streisand grew up

Stomach-churning video shows the moment a Brooklyn man shot and killed a father and his stepson in the hallway of their apartment building over an argument over noise levels.

The argument that ended with the cold-blooded murder of two men was reportedly over a noise complaint that occurred on Sunday evening.

According to the New York PostThe shooting took place on the fourth floor of a well-known East Flatbush housing complex where Barbra Streisand and the late The Wire star Michael K. Williams grew up.

The terrifying footage shows a man dressed in black walking angrily through the hallway around his upstairs neighbor’s apartment.

As the man walks, a woman in sweatpants and a tank top comes out of an apartment and talks to him.

The horrors unfolded before the eyes of Mathurin’s wife, who watched as both her husband and son were murdered in cold blood. The gunman in blue is on the run and has not been named by police

The woman is quickly joined by her son, identified by authorities as Chinwai Mode, 27.

The video contains no audio, so it’s unclear what exactly the neighbors’ back and forth entails.

Moments later, the mother and son are joined by Mode’s stepfather, Bladimy Mathurin, 47.

The father angrily confronts the neighbor and gets in his face while wielding a pair of scissors.

His wife tries to turn him away from the confrontation, but Mathurin – reportedly an amateur bodybuilder and father of four – pushes her away.

At that moment, the neighbor takes a gun from his jacket and points it at Mathurin.

Mathurin sees the gun, but throws it away and turns and walks back to his door. The neighbor then starts shooting, hitting Mathurin, who immediately falls to the ground.

The stepson, who was in the hallway and saw Mathurin go downstairs, tries to run from the gunman, but is unsuccessful and is shot several times before collapsing motionless in a pool of his own blood near the stairs.

The apartment complex where the double murder took place was once home to Barbra Streisand and Michael K Williams

Mathurin was shot several times by a neighbor who erupted after a confrontation over a noise complaint – an issue that had come up frequently between the two men who lived in apartments on adjacent floors

The neighbor then turns his attention back to Mathurin, who is struggling to get up. He shoots him execution style right outside his door.

The man, after slaughtering two people, looks around the bloody hallway and then calmly waits for the elevator, which he takes down before fleeing the scene.

Police say they have identified the killer, although they have not publicly named him and he is believed to still be on the run.

According to the Post, nine shell casings were recovered at the scene.

After the murders, Marie Delille, Mathurin’s wife, said she and her family had argued for years with their downstairs neighbor over noise levels.

On Sunday evening, the neighbor started banging on his ceiling because of the allegedly loud noises coming from Mathurin and Delille’s apartment.

Mathurin responded by banging back, prompting the neighbor to run up the stairs and kick the family’s front door, the grieving widow said.

“This man hates us with every bone in his body,” Delille said.

“My husband had no gun, no weapon. Why did you bring a gun to shoot my family? Why would you bring a gun to tear my family apart? Why? Why?’