Carrigan is born to Irish parents in Glasgow, but moves to Denny, Stirlingshire, following the early death of his father. He is a trained tailor to trade but also attends classes in history and literature and is proficient in French and Latin, studies the Irish language, and is a Gaelic Leaguer.
Carrigan becomes president of his local branch of the United Irish League (UIL) in Denny in 1898 and later becomes a member of the Irish Republican Brotherhood (IRB). In 1905, he becomes the Chairman of Sinn Féin‘s first ever cumann in Scotland, the Éire Óg Craobh Cumann. In 1916, he is the official Scottish representative to the IRB.
On April 28, 1916, his 34th birthday, during an evacuation of the General Post Office (GPO) in Dublin under the command of The O’Rahilly, Carrigan is shot and killed by British soldiers on Moore Street. He is buried in the St. Paul’s section of Glasnevin Cemetery in Dublin.
The attacks are linked to the Glenanne gang, a group of loyalist militants who are either members of the UVF, the Ulster Defence Regiment (UDR), the Royal Ulster Constabulary (RUC) and the closely linked UVF paramilitary the Red Hand Commando (RHC). Some of the Glenanne gang are members of two of these organisations at the same time, such as gang leaders Billy Hanna, who is in both the UVF and the UDR and who fights for the British Army during the Korean War, and John Weir from County Monaghan, who is in the UVF and is a sergeant in the RUC. At least 25 UDR men and police officers are named as members of the gang. The Red Hand Commando claim to have carried out both attacks.
The attacks are planned at the Glenanne farm of RUC reserve officer James Mitchell which is where most terrorist acts are planned by the gang and the farm also acts as a UVF arms dump and bomb-making site. After the attacks are finished everyone involved in both attacks is to meet at Mitchell’s farm. Then if there is any heat, Mitchell can claim the bombers and shooters were with him when the attacks happened.
The first phase of the plan starts at around 6:15 p.m. along Crowe Street in Dundalk when a 100-pound no-warning bomb explodes in a Ford sports car just outside Kay’s Tavern. The blast kills Hugh Watters, who is a tailor and has just dropped into the pub to deliver some clothes he has altered for the pub’s owner, almost instantly. Jack Rooney, who is walking past the town hall on the opposite side of the street, is struck in the head by flying shrapnel and dies three days later. A further 20 people are injured in the explosion, several of them very seriously. The car bomb is fitted with fake southern registration plates and placed in one of the busiest streets in Dundalk in the hope of causing maximum death and injury. According to Joe Tiernan, UVF commander Robin Jackson plants the bomb and along with other members of his unit escapes across the border in a blue Hillman Hunter around the time the bomb goes off.
At around 9:00 p.m., about three hours after the Dundalk bombing, the second phase of the coordinated plan begins. It is led by McConnell and takes place at Donnelly’s Bar & Filling Station in the small Armagh village Silverbridge, close to Crossmaglen.
The unit arrives in two cars and come unusually fast toward the pub. The publican’s son, Michael Donnelly (14), is serving petrol to a customer. He notices the strange speed of the cars. He tries to run toward the pub, but McConnell jumps out of one of the cars and shoots the teenage boy dead with a Sten gun. McConnell then shoots the man Michael Donnelly had been serving petrol to in the head. Although the man survives the shooting, he is maimed for life.
Then a second gunman, believed to be Billy McCaughey, a UVF volunteer and member of the RUC Special Patrol Group, shoots dead a second person, local man Patrick Donnelly (no relation to the pub owner’s family) who has been waiting for petrol. McConnell then goes inside the pub and sprays the bar with his Sten SMG, killing a third man, Trevor Bracknell, and seriously injuring three more people.
As McConnell withdraws to his car, two other members of the unit carry a 25-pound cylinder bomb inside the pub. As McConnell’s unit flees back to Mitchell’s farm, the bomb detonates inside the pub. However, by this time most of the people have already fled.
(Pictured: Photograph of the destruction at Kay’s Tavern after the loyalist car bomb explosion on December 19, 1975. Members of the Garda and Dundalk fire service are seen in the foreground. Also present are a number of visiting government ministers from Dublin.)