When officers arrived, they were told that a man in his 40s had been shot near the corner of Rochester Avenue and Bergen Streets, the entrance of the housing project.
But the officers couldn’t immediately find the wounded man, because he had crawled away from the place where he had been shot, a police official said.
Witnesses told the police that a man with a gun had run up the block, Chief Terence Monahan said at a news conference near the scene less two hours after the incident. After a search, the officers came upon the armed man, who they believed to be the shooter, hiding behind a tree on Bergen Street, the chief said.
The man, who was 34 but whose name was not released, pointed his weapon at the responding officers, the police said. For more than a minute, officers ordered the man over and over to drop his weapon in an adrenaline-charged standoff, the chief said.
Videos posted on Facebook and Twitter also showed numerous neighbors behind the officers, warning the man, “Drop the gun!”