There was some good news, though, to come out of Northern Ireland today:
Speaking earlier today before the claim of responsibility, the Sinn Féin leader, Gerry Adams, called the attack "wrong and counter-productive" and, in an unprecedented statement, said his party had a "responsibility to be consistent ... the logic of this is that we support the police in the apprehension of those involved in last night's attack".
It was not until a vote at a special meeting of Sinn Féin in early 2007 that the party ended decades of opposition to the province's Protestant-dominated police force.
Sinn Féin's Martin McGuinness, deputy first minister of Northern Ireland, said: "I was a member of the IRA, but that war is over now. The people responsible for last night's incident are clearly signalling that they want to resume or re-start that war. Well, I deny their right to do that."
At midday, hundreds of churchgoers from churches across Antrim gathered at the police cordon near the murder scene to hold a prayer service. Traffic was halted as congregations from the Roman Catholic, Church of Ireland, Presbyterian and Methodist churches came together to pray for the victims.