Dissident Irish republican paramilitary group the New IRA has claimed responsibility for the murder of Northern Irish . Mary M . Murphy , 29 , was shot in the head by a bullet aimed at police during rioting in the nationalist Creggan area of Londonderry . The 1998 peace deal marked the end in the region of decades of violent conflict - known as the Troubles - involving republicans and loyalists during which about 3,600 people are estimated to have died. In a statement to the Irish News , the IRA offered their " full and sincere apologies " to her family and friends . A 57-year - old woman has been arrested in connection with the shooting .
Dissident Irish republican paramilitary group the New IRA has claimed responsibility for the murder of Northern Irish . Mary M . Murphy , 29 , was shot in the head by a bullet aimed at police during rioting in the nationalist Creggan area of Londonderry . In a statement to the Irish News , the IRA offered their " full and sincere apologies " to her family and friends . A 57-year - old woman has been arrested in connection with the shooting .