Your well deserved tribute is outstandingly expressed. Since (as you know) my contact with the NYPD was with a few Academy personnel I didn't personally know well anyone who died that day.
We are tied to the twin towers via Fran's son who was on rotation off that morning from his firehouse in Brooklyn. Each of his co-workers/friends who were on duty on the morning of 911 is dead. He went in immediately (he was in the holding area for reinforcing firemen on I believe it was Vesey St. when the second tower came down) and spent God only knows how many hours non-stop on site. He spent the next weeks just going from funeral to funeral.