Investigators still have not determined why a portion of the Hard Rock Hotel New Orleans collapsed on October 12, killing three workers. A passerby's video gave the public a view of the devastating failure, and the only glimpse into the potential cause was via workers who recorded what they said was inadequate shoring of concrete floors during the curing process in the days leading up to the accident.

Experts who have viewed that video said it does not provide enough evidence to make a definitive judgment about the cause. However, it is likely to be used as evidence in the many lawsuits already filed alleging negligence on the part of the developer, general contractor and other project participants.

An attempt to demolish two tower cranes damaged in the collapse did not fully succeed, leaving crews and New Orleans officials with two dilemmas — how to make the building site safe so that they can open the roads for area businesses and how to recover the two bodies remaining inside.

To that end, Mayor LaToya Cantrell announced that developer Kailas Cos. was working on a plan to implode the entire remaining hotel structure, a process that is estimated to be completed in early 2020.