Former IRA leader Gerard 'Jock' Davison shot dead in south BelfaFormer IRA leader Gerard 'Jock' Davison shot dead in south BelfaFormer IRA leader Gerard 'Jock' Davison shot dead in south BelfaFormer IRA leader Gerard 'Jock' Davison shot dead in south BelfaFormer IRA leader Gerard 'Jock' Davison shot dead in south Belfa