In 1993, Yorkshire Television broadcast a programme "The Hidden Hand: the Forgotten Massacre", and the narrator named McConnell as a member of one of the two UVF bomb teams that perpetrated three car bomb attacks in Dublin on 17 May 1974, which killed 26 people. The programme also linked him to British military intelligence and Captain Robert Nairac, stating that McConnell and key figures from the bombing unit were controlled before and after the bombings by Nairac. RUC Special Patrol Group (SPG) officer John Weir alleged that McConnell had been part of the UVF unit that shot leading Provisional IRA man John Francis Green to death in January 1975. Weir also alleged that McConnell had been one of the gunmen in the Reavey family shootings, as well as having had a key role in the bomb and gun attack against Donnelly's Bar the previous month. These were part of a series of sectarian attacks and killings that were carried out by the group of loyalist extremists known as the Glenanne gang, of which McConnell was a member. This gang comprised rogue elements of the Royal Ulster Constabulary (RUC), the SPG, Ulster Defence Regiment (UDR), and the UVF's Mid-Ulster Brigade, which from 1975 to the early 1990s was commanded by Robin "the Jackal" Jackson. Jackson was also implicated by the "Hidden Hand" in the Dublin and Monaghan bombings, and he was reportedly involved in the Green assassination.