The call comes in the middle of the night. There's been a fatal apartment fire in Queens — a walk-up in Jackson Heights, a converted two-family in Richmond Hill, a basement apartment in Corona — and someone you love didn't make it out. In the days that follow, the questions pile up faster than the answers. Why didn't the smoke detector go off? Why was the second exit blocked or padlocked? Why was anyone living in a basement that was never legally an apartment in the first pla