Powell, the husband of missing Utah woman Susan Powell, died along with his children Sunday.
Authorities say they found 10 gallons of gasoline inside the home. A five-gallon can was spread throughout the house and used as an accelerant in the huge blaze. Another can was found by the bodies.
They say Josh Powell did send longer emails to some people, including his cousin and pastor, with instructions such as where to find his money and how to shut off his utilities.
But none of the emails said anything about what happened to his wife.
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