John Senecal and Liz Dahlem
Neighbors said a mother and her two middle-aged sons live in the house and a family member said her step-brother did not make it out of the house.
The North Branford Police Department has positively identified the victim of a fatal house fire on Friday.
William Antonopoulos, 34, died of smoke inhalation, according to the state medical examiner.
The fire started around 6 a.m. on Friday.
Several people were able to get out of the house, but Antonopoulos was not.
On Friday morning, neighbors said a mother and her two middle-aged sons live in the house.
Officials said the flames were so strong that they had to pull firefighters back for fear that the roof would collapse and that is what happened.
The fire chief said a neighbor placed a ladder at the back of the house and tried to help Antonopoulos out, but the fire was too intense. Antonopoulos was found at the back of the house, officials said.
This was the first fatal fire in North Branford in more than 20 years.
Investigators said there was no sign of working smoking detectors. An investigation is underway.