Question: What is the name of a volunteer that killed 3 and injured more than 60, in what came to be know as the Milltown Cemetery attack?

full_context: Document 1: The Troubles in Magherafelt: A total of eleven people were killed in violence relating to the Northern Irish Troubles in the town of Magherafelt, County Londonderry. Nine were killed by the Irish Republican Army (IRA), including three IRA members killed by the premature explosion of their own bomb while travelling through Magherafelt. One was killed by a non-specific republican group and another by the opposing Ulster Freedom Fighters (UFF). Of the others killed by the IRA, four were Protestant civilians. Three of them were killed in two separate car bomb explosions. The fourth Protestant civilian was shot because his firm was a contractor for the British Army and the Royal Ulster Constabulary (RUC). The IRA's other two victims were both Protestant members of the security forces, one from the RUC and the other from the Ulster Defence Regiment. Both were off duty when killed. The man killed by the UFF was a Sinn Féin councillor who was shot in his workplace. The man killed by the non-specific republican group was a Catholic civilian.
Document 2: 1994 Shankill Road killings: The 1994 Shankill Road killings took place on 16 June 1994. The Irish National Liberation Army (INLA) shot dead three Ulster Volunteer Force (UVF) members – high-ranking member Trevor King, Colin Craig and David Hamilton – on the Shankill Road in Belfast, close to the UVF HQ.The following day, the UVF launched two 'retaliatory' attacks. In the first, UVF members shot dead a Catholic civilian taxi driver in Carrickfergus. In the second, they shot dead two Protestant civilians in Newtownabbey, whom they believed were Catholics. The Loughinisland massacre, two days later, is believed to have been a further retaliation.
Document 3: Torrens Knight: Torrens Knight (born 4 August 1969) is a Northern Ireland loyalist, who belonged to the North Antrim and Londonderry Brigade of the Ulster Defence Association (UDA). In 1993 he took part in the Greysteel massacre (in which eight civilians were shot dead) and the Castlerock killings (in which three civilians and a Provisional Irish Republican Army (IRA) member were killed). After being convicted—along with three others—for the killings, he served seven years in the Maze Prison before his release in 2000 under the terms of the Belfast Agreement.
Document 4: Paddy Wilson and Irene Andrews killings: The killings of Paddy Wilson and Irene Andrews took place in Belfast, Northern Ireland on the night of 25/26 June 1973. The victims, Roman Catholic Senator Paddy Wilson and his Protestant friend, Irene Andrews, were hacked and repeatedly stabbed to death by members of the "Ulster Freedom Fighters" (UFF). This was a cover name for the Ulster Defence Association (UDA), a then-legal Ulster loyalist paramilitary organisation. John White, the UFF's commander, who used the pseudonym "Captain Black", was convicted of the sectarian double murder in 1978 and sentenced to life imprisonment. White, however maintained that the UFF's second-in-command Davy Payne helped him lead the assassination squad and played a major part in the attack. Although questioned by the Royal Ulster Constabulary (RUC) after the killings, Payne admitted nothing and was never charged.
Document 5: New Lodge Six shooting: In the late hours of 3 February and the early hours of 4 February 1973, six men, all of whom were Catholics, were shot and killed in the New Lodge area of north Belfast, four (one IRA member and three civilians) of them were shot dead at the junction at Edlingham Street by British Army snipers, the other two men were shot dead by the Ulster Defence Association (UDA). Irish Nationalists and Republicans believe that collusion took place between the British security forces and Loyalist paramilitaries in the shootings. The six men who were killed became known as "The New Lodge Six".
Document 6: Milltown Cemetery attack: The Milltown Cemetery attack (also known as the Milltown Cemetery killings or Milltown Massacre) took place on 16 March 1988 in Belfast's Milltown Cemetery. During the funeral of three Provisional IRA volunteers killed in Gibraltar, an Ulster Defence Association (UDA) volunteer, Michael Stone, attacked the mourners with hand grenades and pistols. As Stone then ran towards the nearby motorway, a large crowd began chasing him and he continued shooting and throwing grenades. Some of them caught him and began beating him, but he was rescued by the police and arrested. Three people had been killed and more than 60 wounded. The "unprecedented, one-man attack" was filmed by television news crews and caused shock around the world.
Document 7: Greysteel massacre: The Greysteel massacre was a mass shooting that happened on the evening of 30 October 1993 in Greysteel, County Londonderry, Northern Ireland. Three members of the Ulster Defence Association (UDA), a loyalist paramilitary group, opened fire in a crowded pub during a Halloween party, killing eight civilians and wounding thirteen. The pub was in an Irish Catholic and Irish nationalist area. The group claimed responsibility using their cover name "Ulster Freedom Fighters" and said that the attack was revenge for the Shankill Road bombing by the Provisional IRA a week earlier.
Document 8: John Weir (loyalist): John Oliver Weir (born 1950) is an Ulster loyalist born in the Republic of Ireland. He served as an officer in Northern Ireland's Royal Ulster Constabulary's (RUC) Special Patrol Group (SPG) (a tactical reserve unit), and was a volunteer in the illegal Ulster Volunteer Force (UVF). As a member of the UVF's Mid-Ulster Brigade led by Robin "the Jackal" Jackson, Weir was a part of the Glenanne gang, a group of loyalist extremists that carried out sectarian attacks mainly in the County Armagh area in the mid-1970s. Along with his RUC colleague Billy McCaughey, Weir was convicted of the 1977 sectarian killing of Catholic chemist William Strathern and sentenced to life imprisonment. Weir's affidavit which implicated Jackson, other members of the Glenanne gang, soldiers of the Ulster Defence Regiment (UDR), and his colleagues in the RUC and SPG, in a series of sectarian attacks, including the Dublin and Monaghan bombings, was published in the 2003 Barron Report, the findings of an official investigation into the 1974 car bombings commissioned by Irish Supreme Court Justice Henry Barron.
Document 9: Ulster Defence Association: The Ulster Defence Association (abbreviated UDA) is the largest Ulster loyalist paramilitary and vigilante group in Northern Ireland. It was formed in September 1971 and undertook a campaign of almost twenty-four years during the Troubles. For most of this time it was a legal organisation. Its declared goal was to defend Ulster Protestant loyalist areas and to combat Irish republicanism, particularly the Provisional Irish Republican Army (IRA). In the 1970s, uniformed UDA members openly patrolled these areas armed with batons and held large marches and rallies. Within the UDA was a group tasked with launching paramilitary attacks; it used the covername Ulster Freedom Fighters (UFF) so that the UDA would not be outlawed. The British government outlawed the "UFF" in November 1973, but the UDA itself was not proscribed as a terrorist group until August 1992.
Document 10: Corporals killings: British Army corporals David Howes and Derek Wood were killed by the Provisional IRA on 19 March 1988 in Belfast, Northern Ireland, in an event which became known as the corporals killings. The off-duty soldiers were wearing plain-clothes when they were killed by the IRA after encountering the funeral procession of an IRA member whilst returning from Belfast to Lisburn. Three days before, loyalist paramilitary Michael Stone had attacked an IRA funeral and killed three people. Believing the soldiers were loyalists intent on repeating Stone's attack, dozens of people surrounded and attacked their car. During this, Corporal Wood drew his service pistol and fired a shot in the air. The soldiers were then dragged from the car, beaten, and taken to nearby waste ground where they were stripped and shot dead.
Document 11: Shankill Butchers: The Shankill Butchers was an Ulster loyalist gang—many of whom were members of the Ulster Volunteer Force (UVF)—that was active between 1975 and 1982 in Belfast, Northern Ireland. It was based in the Shankill area and was responsible for the deaths of at least 23 people, most of whom were killed in sectarian attacks. The gang was notorious for kidnapping and murdering random Catholic and suspected Catholic civilians; each was beaten ferociously and had his throat hacked with a butcher's knife. Some were also tortured and attacked with a hatchet. The gang also killed six Ulster Protestants over personal disputes, and two other Protestants mistaken for Catholics. Most of the gang were eventually caught and, in February 1979, received the longest combined prison sentences in United Kingdom legal history. However, gang leader Lenny Murphy and his two chief "lieutenants" escaped prosecution. Murphy was killed in November 1982 by the Provisional IRA, likely acting with loyalist paramilitaries who perceived him as a threat. The Butchers brought a new level of paramilitary violence to a country already hardened by death and destruction. The judge who oversaw the 1979 trial described their crimes as "a lasting monument to blind sectarian bigotry".
Document 12: Michael Stone (loyalist): Michael Stone (born 2 April 1955) is an Ulster loyalist who was a volunteer in the Ulster Defence Association (UDA). Stone was born in England but raised in the Braniel estate in East Belfast, Northern Ireland. Convicted of murdering three people and injuring more than 60 in an attack on mourners at Milltown Cemetery in 1988, he was sentenced to life imprisonment. While in jail, he became one of the leaders of the Ulster Defence Association/Ulster Freedom Fighters (UDA/UFF) prisoners.
Document 13: Bloody Sunday (1972): Bloody Sunday – sometimes called the Bogside Massacre – was an incident on 30 January 1972 in the Bogside area of Derry, Northern Ireland, when British soldiers shot 28 unarmed civilians during a peaceful protest march against internment. Fourteen people died: thirteen were killed outright, while the death of another man four months later was attributed to his injuries. Many of the victims were shot while fleeing from the soldiers and some were shot while trying to help the wounded. Other protesters were injured by rubber bullets or batons, and two were run down by army vehicles. The march had been organised by the Northern Ireland Civil Rights Association (NICRA). The soldiers involved were members of the 1st Battalion, Parachute Regiment, also known as "1 Para".
Document 14: 1997 Coalisland attack: On the evening of 26 March 1997, the Provisional IRA East Tyrone Brigade launched an improvised grenade attack on the fortified Royal Ulster Constabulary/British Army base in Coalisland, County Tyrone, Northern Ireland. The blast sparked an immediate reaction by an undercover Special Air Service unit, who shot and wounded Gareth Doris, an Irish republican and alleged IRA volunteer. The SAS unit was then surrounded by a crowd of protesters who prevented them approaching Doris or leaving. RUC officers arrived and fired plastic bullets at the crowd, allowing the special forces to leave the area.
Document 15: John Murphy (loyalist): John Alexander Thompson Murphy (26 August 1950 – 10 August 1998) was a loyalist from Belfast, Northern Ireland. He was one of the three leading men in the "Shankill Butchers", an Ulster Volunteer Force (UVF) murder gang.
ground_truth: Michael Stone