 In June 1923, after the end of the civil war, Seán Lemass's brother Noel Lemass, an anti-Treaty IRA officer, was abducted in Dublin by a number of men, believed to be connected to the National Army or the Police CID unit.He was held in secret until October when his mutilated body was found in the Dublin Mountains, (see also Executions during the Irish Civil War).Seán Lemass was released from prison on compassionate following his brother's death.