In May 1995, 22-year old David Bain was convicted of murdering five members of his family with a rifle in their Dunedin home. Bain would spend over a decade in prison before being acquitted on all charges. National debate around the 1995 verdict was galvanised by the release of two conflicting books on the case — Joe Karam’s David and Goliath and James McNeish’s The Mask of Sanity. The former All Black and the writer go head-to-head in this often testy Holmes debate from 1997. Ten years later, the Privy Council quashed Bain’s 1995 conviction; he was acquitted in a 2009 retrial.