Friday, July 15, 2011
About 50 people were standing on the fourth-floor walkway and about 100 people were on the second-floor walkway, with up to 200 people standing in the lobby beneath them. The fourth floor walkway tore from its bearings and crushed the second one, tearing it down. Then both bridges crashed onto the lobby floor. Investigations revealed that critical changes to the bridges' designs made the tragedy unavoidable.
Read more about the disaster and efforts to finally commemorate the lives of the victims: http://skywalk.kansascity.com/articles/sections/disaster/