Brian "Ginger" Gillen is a volunteer

Volunteer (Irish republican)

Volunteer, often abbreviated Vol., is a term used by a number of Irish republican paramilitary organisations to describe their members. Among these have been the various forms of the Irish Republican Army and the Irish National Liberation Army...

 in the Belfast Brigade

Provisional IRA Belfast Brigade

The Belfast Brigade of the Provisional IRA was the largest of the organisation's command areas, based in the city of Belfast. Founded in 1969, along with the formation of the Provisional IRA, it was historically organised into three battalions; the First Battalion based in the...

 of the Provisional Irish Republican Army

Provisional Irish Republican Army

The Provisional Irish Republican Army is an Irish republican paramilitary organisation whose aim was to remove Northern Ireland from the United Kingdom and bring about a socialist republic within a united Ireland by force of arms and political persuasion...

, and also a member of the IRA Army Council

IRA Army Council

The IRA Army Council was the decision-making body of the Provisional Irish Republican Army, more commonly known as the IRA, a paramilitary group dedicated to bringing about the end of the Union between Northern Ireland and the rest of the United Kingdom. The council had seven members, said by the...

.

In 1995 Gillen, as Officer Commanding

Officer Commanding

The Officer Commanding is the commander of a sub-unit or minor unit , principally used in the United Kingdom and Commonwealth. In other countries, the term Commanding Officer is applied to commanders of minor as well as major units.Normally an Officer Commanding is a company, squadron or battery...

 of the IRA's Belfast Brigade, was a member of the IRA Executive and was critical of the strategy being employed by Gerry Adams

Gerry Adams

Gerry Adams is an Irish republican politician and Teachta Dála for the constituency of Louth. From 1983 to 1992 and from 1997 to 2011, he was an abstentionist Westminster Member of Parliament for Belfast West. He is the president of Sinn Féin, the second largest political party in Northern...

. In 1997 Gillen was elected to the Army Council with the backing of Adams, after he backed the leadership over dissidents who wished to steer the IRA in a more hardline direction.

In 2000, Gillen, along with Adams, Martin McGuinness

Martin McGuinness

James Martin Pacelli McGuinness is an Irish Sinn Féin politician and the current deputy First Minister of Northern Ireland. McGuinness was also the Sinn Féin candidate for the Irish presidential election, 2011. He was born in Derry, Northern Ireland....

, Pat Doherty

Pat Doherty

Patrick "Pat" Doherty is an Irish republican politician and abstentionist Member of Parliament for West Tyrone. He has been a member of the Northern Ireland Assembly for the same constituency since 25 June 1998...

 and Brian Keenan

Brian Keenan (Irish republican)

Brian Keenan was a former member of the Army Council of the Provisional Irish Republican Army who received an 18-year prison sentence in 1980 for conspiring to cause explosions, and played a key role in the Northern Ireland peace process.-Early life:The son of a member of the Royal Air Force,...

 were issued with a subpoena, in order to appear at Northern Ireland High Court as part of a civil action which was taken by relatives of the 29 Omagh bombing

Omagh bombing

The Omagh bombing was a car bomb attack carried out by the Real Irish Republican Army , a splinter group of former Provisional Irish Republican Army members opposed to the Good Friday Agreement, on Saturday 15 August 1998, in Omagh, County Tyrone, Northern Ireland. Twenty-nine people died as a...

 victims.

His solicitor was Patrick Finucane

Pat Finucane (solicitor)

Patrick Finucane was a Catholic Belfast solicitor killed by loyalist paramilitaries on 12 February 1989. His killing was one of the most controversial during the Troubles in Northern Ireland. Finucane came to prominence due to successfully challenging the British Government over several important...

.