In July 1927, at just thirty-five years old, Kevin O' Higgins was assassinated on his way to Mass in Booterstown, Co. Dublin. A reviled figure for anti-Treaty republicans, O' Higgins became the target of particular venom for his vocal support of the Free State government's execution policy during the Civil War, which saw seventy-seven IRA men die before firing squads, including the best man at his wedding, Rory O' Connor. In Walled in By Hate, Arthur...