The fact that so many lives were lost in this tragic fire indicates either 1) the fire was inadequately contained in the apartment of fire origin and spread quickly inside the building, or 2) people remained in their units and were overcome when heat/smoke entered their apartment through windows. If scenario 2) was at play, then that raises the question of whether or not the building had a voice communication system that was capable of instructing people to leave their apartments. If there was no such system in place, then you have to wonder how many lives could have been saved if there was.