Her co-accused, LVF leader Jim Fulton, was convicted of directing the 1999 murder of Elizabeth O'Neill, along with a series of other offences, and sentenced to life imprisonment.
[3] Gibson became involved in loyalist paramilitary activities in December 1991,[3] shortly after her return to Northern Ireland from her sojourn in the United States and imprisonment.
On 21 April 1998, 29-year-old Catholic council worker, Adrian Lamph was killed outside Fair Green Amenity Centre in Portadown.
He was shot in the head at close range by an LVF gunman on a mountain bike wearing a red scarf over his face.
In 1999, Gibson got into a violent street altercation with Mid-Ulster UVF brigadier Richard Jameson, who slapped her forcefully in the face after he had accused her of involvement in drugs.
In June 2001, Gibson and her two daughters, Rain and Talutha Landry were arrested in Cornwall, where she had been living, following taped conversations the three women had with Fulton and undercover police officers in which they boasted about their involvement in various LVF-related attacks and revealed the names of the perpetrators.
She also admitted to having extorted money by threatening the owners and workers of local Portadown building sites and bars.
At the Craigavon Magistrates Court, Gibson was accused of the murder of Adrian Lamph and Rain was charged with an arson attack and causing an explosion.
Their trial, which took place at the Belfast Crown Court, lasted from September 2005 to December 2006, making it the longest in Northern Ireland's legal history.
[1] Gibson faced a total of 11 charges, including the murder of Lamph and conspiring to cause explosions in the Republic of Ireland, all of which she denied.
[1] Her co-accused Jim Fulton received a life sentence for directing the pipe-bomb killing of Elizabeth O'Neill (a Protestant married to a Catholic) and a series of other offences, including seven attempted murders.