anything, and nothing's there. >> by mid-august, serena's mother was extremely concerned. >> i started to be really afraid. >> kevin porter made a call to brian williams' bank, and that's when he made a stunning discovery. williams' bank told him that a check for $152,000 had just been written on brian's account, a check made out to this gold coin dealer in phoenix, arizona, certified mint and the address on the checking account had been changed to a residence in miami, florida. porter said he called certified mint and the owner told him that he'd had several phone conversations with someone identifying himself as brian williams. >> i called the number and it was your typical brian williams message. "hey, this is "b"" leave a message. but it wasn't brian's voice. it was miles' voice. >> when the owner informed the families that the person claiming to be brian williams would be picking up the gold on