Table of Contents Executive Summary Topographical Setting Structure Nomenclature Historical Setting Meteorlogical Phenomenon Eyewitness Accounts Progression of Collapse Forensic Markers Mechanics of Collapse Initiation of Failure Conclusionary Remarks Recommendations References Appendix A- Aerial Photos Appendix B- Meteorological Report Appendix C- Metallurgical Report Appendix D- Eyewitness Testmonies Appendix E- Structural Analysis Presentation and Animation of Collapse