Blast kills husband of missing Utah woman, 2 boys

Washington police say Josh Powell and his two young sons have been killed in an explosion at the Powells' Graham, Wash., home. Officials are calling the deaths a murder-suicide.

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  Josh Powell, two sons killed in "intentional" explosion of Powell's Washington home

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  Josh Powell and 2 young sons dead in blast; 'terrible act of murder,' says deputy

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  Timeline: The disappearance of Susan Cox Powell