Jeffrey Johnson

“Steve and Jeff never got along,” said co-worker Irene Timan. “Jeff just didn’t like him. He would taunt Steve, throw his elbow or shoulder into him in the hallway. Then they had a little altercation in the elevator and soon after Jeff was laid off, we never heard from or saw him again — until this morning.”

NBC New York said that in 2011, while riding in an elevator together, Johnson told Ercolino, “I am going to kill you.”

On Friday Johnson made good on that threat.

After killing Ercolino, Johnson started walking down the sidewalk, but was soon confronted by two New York police officers. Johnson pulled out a gun and turned to face the officers who opened fire on him.

The cops fired 16 shots before Johnson could get off a single shot. He was killed instantly.

“It was a frozen moment,” said witness Karaann White. “I’m just glad it wasn’t a terrorist attack,” she said. “Because it was at the Empire State Building, that’s what we all thought it was.”

Johnson shot dead lying face down.

A total of 9 innocent bystanders were hit by police gunfire. All are expected to make full recoveries.

NYPD released footage of the fatal shooting. Watch that below.