Woman escapes from car ; another jogs under bridge moments before death . Woman 's body found at disaster site ; she 's safe at work . Number of people actually missing still unclear . First lady Barbara Bush visits Minneapolis ; decides to visit Minnesota .
Woman escapes from car ; another jogs under bridge moments before collapse . Woman 's car found at disaster site ; she 's safe at work . Number of people actually missing still unclear . First lady Laura Bush visits Minneapolis ; president to visit Saturday .