John (Hotline),
This is indeed a tragedy, 5 lives lost for a very simple source of ignition.
Personally, it makes me wonder why bulbs in closets are not required to have a protecting cage around them?
Attached to structural timbers, not a part of the light fitting itself.
Mattresses are one of the nastiest things that you can ever have go on fire, inherently, they will smoulder for a number of hours and then burst into flames all of a sudden.
I as a Fire-fighter, know this fact intimately.
