Humiliated and broken by her husband's affair, Lyn finally asked Joanne to leave the Bayview home. The teenager walked out, and into the home of Chris's twin brother, Paul, a few hundred metres down the same street. Tensions continued to rise. And then suddenly, Lyn vanished. Years later, Joanne suggested Lyn's remains were buried at Bayview, in the 'soft soil' - outside what were her daughters' bedroom windows. In this episode, a surprise new witness speaks publicly for the first time about something he was told in 1987, indicating the possible whereabouts of a body.