The investigation shows elevator did not drop or fall. Hoist cable snapped and hit safety plank switch that caused elevator to stop at 12th floor.
Otis elevator mechanics did a great job locating elevator in hoistway and recusing people.
Chicago Fire Department knocked out cinder block wall to get Otis mechanics to front of cab.
Otis Elevator Company should be proud of those guys, CFD was not prepared for this kind of rescue that led to confusion in the Chicago Fire Department and it showed in building.