we got that from sharon. we got that from ron. we got that from laci s friends. everybody had an interest in in trying to get us to go faster. reporter: everybody, that is, but scott. now why, they wondered, would that be? coming up hey, beautiful, i just left a message at home. when i listened to that i thought he was leaving this recording for us to hear. reporter: scott under scrutiny. i was afraid to say it out loud. but could he be involved with her disappearance? when dateline continues.