51�Թ�

Walls are made using layers of flat stones across vertical coping stones, with the "A" shape tying it all together.

The man had been outside the 14-story residence at 311 East 50th Street when he was struck by a coping stone that had been removed to anchor the suspended scaffold, a Fire Department official said.

“There’s still anticipated work on the west facade due to the deterioration to the mortar of the coping stones,” McMurray said.

Witnesses saw MacMillan shouting abuse before picking up a coping stone and attacking Mr Hussein.

That opened up space along the coping stones of a low granite foundation wall.