We spent the weekend on the ground in Seattle, looking for any signs of our missing 18-year-old University of Washington student Marizela Perez. Family, friends, supporters, student and church volunteers, Facebook users, blog readers, and kind strangers met us on Saturday in the parking lot at the Safeway in the University District where Marizela was last seen. Family members continued the search on Sunday. We spread out and canvassed Ravenna Park, Cowen Park, the Arboretum, the University District, Chinatown, Green Lake, Rainier Beach/Rainier Valley, and the UW Bothell campus. Nothing. Family members were on the ground again today in the...