Robin Leanne Snyder says while the three had breakfast at the Comfort Inn in Sandy, the older boy asked her, "Do you know what happened to my mom?"
She says she replied, "No, what happened to your mom?" and never got an answer. She says she was interviewed by a detective about the encounter a couple weeks ago after posting about it on Facebook.
Powell, long a suspect in his wife's disappearance, killed the boys and himself in a gas-fueled fire in a rental home near Puyallup, Wash., this month.
Since the fire, authorities in Washington have discovered a comforter - apparently stained with blood - Josh Powell left at a storage locker. They found books and an unmarked map of Utah that Powell dumped at a landfill.
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