really, maybe, do you think it could be hers? " and i knew who he meant right away. right away. and i'm like, "no. there's no way. all winter? they searched everywhere here. how could they have missed it? how could they have missed it? " >> yeah. >> sheryl called the monroe county sheriff's office and deputies came to pick up the shoe. and the next day det. sroka sent a photo of the shoe to chelsea's mom. >> i'm on the phone with her. i tell her, "i-- i just sent the email to you. did-- did you get it? " she opens it up and she says, "oh, my god, brian, that's her shoe." and it-- it was just surreal. at that point, you-- your heart drops and you're like, this-- this may really be, you know, something we've been waitin'for. and she checks with other family members and they also confirmed that it was chelsea's shoe. >> now, that was a tip. >> yes.