House of Horrors: The despicable crimes of Jason Somerville

In 2008 Tisha Lowry went missing in Christchurch without a trace. In 2009 her neighbour reported his own wife missing. When he went into a local police station days later, no one could have imagined what he would admit to, and why. We look back at the double murderer and the women he destroyed and buried below his own home.