Enraged, Collins ordered the Twelve Apostles to hunt down and assassinate every one of the RIC officers involved in Mac Curtain's murder. On 22 August 1920, RIC District Inspector Oswald Swanzy, who had ordered the assassination, was shot dead with Mac Curtain's revolver while leaving a Protestant church service in Lisburn, County Antrim. This sparked a "pogrom" against the Catholic residents of the town.Coogan, p. 149.'When the killing starts do you defend God or family?' Irish Independent, Independent.ie , accessed 15/12/09,
Enraged Collins ordered the Twelve Apostles to hunt down and assassinate every one of the RIC officers involved in Mac Curtain's murder On 22 August 1920 RIC District Inspector Oswald Swanzy who had ordered the assassination was shot dead with Mac Curtain's revolver while leaving a Protestant church service in Lisburn County Antrim This sparked a "pogrom" against the Catholic residents of the townCoogan p 149'When the killing starts do you defend God or family' Irish Independent Independentie  accessed 15/12/09