Denise Cox, right, the sister of missing Utah mom Susan Cox Powell, is comforted by her fiance, Andrew Olsen, as she kneels at a makeshift memorial for Powell's sons, Sunday, Feb. 5, 2012, at Carson Elementary School in Puyallup, Wash., where the boys attended school. Police said that the two boys and their father, Josh Powell, were killed when Powell apparently blew up a house with all three of them inside Sunday afternoon. Powell's wife Susan went mysteriously missing from their West Valley City, Utah, home in December 2009. (AP Photo/Ted S. Warren)