In the weeks Interview Andrew Denton speaks to parents who lost not one, but two, sons in devastating circumstances.

Ralph and Kathy Kelly lost their teenage sons, Thomas and Stuart, in devastating circumstances. In 2012, Thomas was killed in a random one-punch attack in Kings Cross. Three and a half years later, Stuart took his own life. Both boys were 18.

Guest this week on Andrew Denton: Interview is the one and only Rebecca Gibney.