Lomer Johnson, pictured dressed as Santa Claus, died with his wife and three grandchildren in the fast-moving blaze.
Stamford investigators have held a preliminary meeting with a state prosecutor about a Christmas Day fire that killed three young girls and their grandparents.
Stamford Fire Lt. Dedrich Hohn confirms local investigators met Friday with the States Attorney. Hohn said the case is still open and ongoing.
The fire destroyed the $1.7 million Victorian home of New York City advertising executive Madonna Badger and killed her 7-year-old twins Grace and Sarah Badger, a 9-year-old daughter Lily Badger. Badger's parents, Lomer and Pauline Johnson also died.
Badger escaped along with her friend Michael Borcina, a contractor who had been renovating the house.
Officials have said they want to determine if the house had working smoke detectors. They say the fire was started by embers in a bag of discarded fireplace ashes.