that's where laura van ryn's family was told to go. they arrived at about 1:15 in the morning. >> in the lobby right there there were a dozen or 15 of laura's friends, a couple roommates. we were greeted by them. >> greeted with tears, with hugs. >> oh, yeah. >> prayers. >> all of the above. >> they didn't know whether laura would survive the next few hours or if she'd ever be the same person again. but for now, at least she was alive. whitney's mom was hoping and praying that her daughter had also survived. and then the phone rang. >> right. >>> coming up -- difficult news about whitney and something puzzling about laura. >> we didn't recognize the shoes. we thought she must have been wearing someone else's shoes. >> a twist of fate continues in a moment. what makes the sleep number store different? you walk into a conventional mattress store, it's really not about you. they say, "well, if you want a firm bed you can lie on one of those. we provide the exact individualization that your body needs. it's really shaping to my body. once