Police investigating a fatal fire in Houghton-le-Spring are treating it as a suspected homicide.
Detectives launched an investigation following the death of Patryk Mortimer, 39, who died in the blaze which started at his home on High Street, Easington Lane, in the early hours of Saturday, November 3.
Nine residents who lived there were helped to safety by firefighters.
But Mr Mortimer was found unconscious inside the building and was pronounced dead a short time later.
Forensic analysts carried out enquiries at the scene throughout last week and an investigation is ongoing to determine what caused the fire.