The bombing killed 29 people , including a woman pregnant with twins . The attackers called in a bomb threat but gave away the wrong location . `` I think there is a lot more information , '' said Michael Gallagher , whose 19-year-old son Aiden was killed in the bombing . Real IRA , a dissident republican paramilitary group , claimed responsibility .
The bombing killed 29 people , including a woman pregnant with twins . The attackers called in a bomb threat but gave away the wrong location . Real IRA , a dissident republican paramilitary group , claimed responsibility .