Social worker tells 911: Powell 'exploded the house!'
Missing Mom Utah
A sign in tribute to Charlie and Braden Powell is shown posted at a growing memorial, Tuesday, Feb. 7, 2012, at Carson Elementary School in Puyallup, Wash., where Charlie attended school. Charlie and Braden were killed Sunday, along with their father, Josh Powell, in what police said appeared to be a deliberately set fire by Powell at a home in Graham, Wash. (AP Photo/Ted S. Warren)