Joe Brady , Michael Fagan , Thomas Caffrey , Dan Curley and Tim Kelly were convicted of the murder . They were hanged in Kilmainham Gaol in Dublin between 14 May and 4 June 1883 . Joe Brady , Michael Fagan , Thomas Caffrey , Dan Curley and Tim Kelly were convicted of the murder and were hanged by William Marwood in Kilmainham Gaol in Dublin between 14 May and 4 June 1883 .