One of the most tragic accidents due to negligent security in the United States is the Cocoanut Grove Nightclub fire. It happened on the 28 of November 1942, in Boston, Massachusetts. What started as a regular night of partying turned into a tragedy that led to the death of over 492 people, leaving several others injured. The worst part of the tragedy is that it was completely avoidable, or the damage could have at least been minimized to reduce the casualties. What went wrong, and what did we learn from this tragic event?