no sandi. vicky's frustration turned to anger, but then she started to worry. around 7:00 that night, she began working the phones. >> we started calling greg, and we started hospitals, the police. we were just on the phones. we were worried. >> vicky and her husband kept sandi's kids at her home that night. >> did you sleep at all that night? >> probably not much. i don't remember. it's a fog, unreal, where she, what happened to her. >> the next morning, still no sandi? had to get up and get ready to go to the birthday party. just told sean, it's okay, you know, your mom will be there. >> meanwhile, greg johnson was looking around his home. there was nothing to indicate that sandi left in a hurry and somehow forgot to tell anyone, as strange as that would be. >> all of her stuff was there. called police, called family, my sister, i probably called her father. >> were you in a full on panic