siblings, that susie casey had come home. >> as you know, everybody is looking for. you give me a call. >> not all of them. >> give me a call. >> tried calling the woman who never went anywhere without her phone. >> hello. just me. >> that phone was her lifeline. >> as susie's brother rusty and sister in laval said during their interviews with investigators. >> i appreciate you guys coming in. >> ty ulrich. >> i see i said let's see which phone call she had. >> that is what a very strange story began to emerge. >> and that's where we saw all these phone calls from a number that we didn't know who it belonged to. >> a number nobody recognize calling susie again and again. all night long. but did that mystery color leave a message? >> neither val nor rusty knew how to access susie's voice mail. but they didn't know who just might.