Search at condo collapse halted over ‘structural concerns.’ President Biden on way to Surfside to meet with families

“There is a possibility that part of the pool [area] came down first and then dragged the middle of the building with it, and that made that collapse,” said Allyn E. Kilsheimer, a veteran engineer hired by Surfside to investigate the collapse. “And then once the middle of the building collapsed, number two, then the rest of the building didn’t know how to stand up and it fell down also, number three.”