The Age | Trade union royal commission: corruption whistleblower's stab wounds 'self ... The Age Builder Andrew Zaf has claimed he provided free roofing materials to union secretary John Setka as a bribe. Photo: Penny Stephens. A builder who accused union leader John Setka of corruption has had his credibility tested amid claims he faked his own ... Builder stabbed himself and blamed CFMEU, union inquiry told Andrew Zaf's claims of free roof for CFMEU boss John Setka under fire Witness stabbing 'self inflicted': inquiry |