BBC News - Bolton house fire 'murder-suicide' theory probed 10 December 2013 Last updated at 09:14 A joint police and fire investigation is under way into the cause of the blaze A house fire that killed three people may have been started by one of those that died as part of a murder-suicide bid, detectives have said. The theory is one line of inquiry in the police investigation into the "suspicious" blaze in Albert Road West, Heaton, Bolton, early on Monday. An elderly woman died after being rescued from upstairs, and two bodies were found in the kitchen. Post-mortem examinations are due to take place to establish how they died. A middle-aged couple who lived at the house have been named locally as Hassan and Mona Rafie, originally from Iran. Greater Manchester Police said the force had received no information of any threat to the family and detectives are not looking for anyone else in connection with the fire. Fire chiefs said the blaze is likely to have started in the kitchen but spread to most of the house.