including seven children, were found dead inside. >> the fire was extinguished and it was terrible. most of -- i've been around for 35 years now and this is probably one of the worst fires i've ever been to. >> the fire department says the four smoke alarms in the building were not working. question now, why not. it's a public housing building and operated by philadelphia housing authority. a senior vice president for the p.h.a. said the fire detectors were inspected annually, including in may of 2021, when two smoke detectors and two batteries were replaced. officials said the detectors have lithium batteries that last for ten years, but this official said frequently residents in public housing disconnect smoke