Last Weeks Building Collapse in Williamsburg Brooklyn Blamed on Age of Building.

Brian Flynn the engineer overseeing the project at 103 Meserolo said, that Thursday's building collapse was obviously because it was a very old building and the bearing walls - made out of wooden joists and an old weak brick support wall - buckled perhaps because the joists were overloaded with construction material, or the wall's mortar had disintegrated.
11 workers were injured in the accident and the one worker that was critical in Bellevue Hospital, is now in stable condition.