robin draper (on recording): i don't know. keith morrison (voiceover): robin told the officer sarah had come by the house earlier in the day with her friend, liam mcatasney. they left a container of sarah's things with her daughter, carly. so the officers drove over to liam's place to see if he could help. it's sarah here by chance? >> no. >> when was the last time you >> when was the last time you talk keith morrison (voiceover): liam said he hadn't seen sarah since late afternoon. keith morrison (voiceover): mike stern had notified his extended family, including sarah's cousins, lindsey and lauren bahr. what was it like to hear that for the two of you? instant panic. yeah. yeah, i tried calling her phone, sending her texts. didn't answer, which was automatically weird because she was glued to her phone. i left the house in my pajamas, got in my car, and raced down to where they said they found her car to see if we could find anything, see anything. keith morrison (voiceover): just hours later, they were gathered with most of