My folks witnessed a death as an adhoc concrete structure was pulled from a pier onto a person below. I guess noone anticipated someone would use the structure

My folks witnessed a death as an adhoc concrete structure was pulled from a pier onto a person below. I guess noone anticipated someone would use the structure as a boat tie off point. By happenstance the person crushed was the person who put up the structure some decade or more back. I don't know if its callous but I only remarked that kind of structure would almost certainly be illegal in the US.