Police have said they believe a house fire which killed three people in Bolton, Greater Manchester was started after the gas supply was tampered with.
Earlier this week they said they were treating the blaze as suspicious.
It is understood one line of inquiry was that Hassan Rafie, 49, had unlawfully killed his wife before deliberately setting the fire.
Neighbours spoke of hearing an explosion from the kitchen of home shortly before flames spread throughout the property.
More top news
Spurs say they are supporting troubled former star Paul Gascoigne after it was reported he had been placed on an emergency three-day detox.
A British jihadi from Portsmouth has been killed fighting in the Syrian Kurdish town of Kobani, currently besieged by Islamic State.
Russell Brand has criticised Newsnight presenter Evan Davis as "insidious" and "rude" following vilification of the star's recent appearance