>> i'm listening. >> is she breathing? >> i don't think so. >> have you checked? >> no. she's cold. >> okay. >> reporter: as she spoke, meredith was cradling her 2 1/2-year-old niece, cassidy, who crawled out from under the bed clothes on her parents' bed, just feet from where her mother lay. cassidy's voice chattering to her aunt was caught on the recorded call. >> she's got booboos everywhere. >> had cassidy witnessed the murder, awakened alone to find this? >> you just picture a small child walking around in this blood and tracking it across the hallway over into the bathroom. >> reporter: by now, wake county investigators were descending on the house. and having secured the crime scene, earp's job was done. but on his way out he saw cassidy again. she was still in her pink pajamas, still in meredith's arms. he asked meredith a question. >> i looked over at the child. i didn't see any blood. so i asked her, did you clean