Question: When was the Ulster loyalist who attacked an IRA funeral and killed three people born? 

<P0-S0> A total of eleven people were killed in violence relating to the Northern Irish Troubles in the town of Magherafelt, County Londonderry. <P0-S1>  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. <P0-S2>  One was killed by a non-specific republican group and another by the opposing Ulster Freedom Fighters (UFF). <P0-S3>  Of the others killed by the IRA, four were Protestant civilians. <P0-S4>  Three of them were killed in two separate car bomb explosions. <P0-S5>  The fourth Protestant civilian was shot because his firm was a contractor for the British Army and the Royal Ulster Constabulary (RUC). <P0-S6>  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. <P0-S7>  Both were off duty when killed. <P0-S8>  The man killed by the UFF was a Sinn Féin councillor who was shot in his workplace. <P0-S9>  The man killed by the non-specific republican group was a Catholic civilian. <SEP> <P1-S0>  Stone was born in England but raised in the Braniel estate in East Belfast, Northern Ireland. <P1-S1>  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. <P1-S2>  While in jail, he became one of the leaders of the Ulster Defence Association/Ulster Freedom Fighters (UDA/UFF) prisoners. <P1-S3> Michael Stone (born 2 April 1955) is an Ulster loyalist who was a volunteer in the Ulster Defence Association (UDA). <SEP> <P2-S0> 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. <P2-S1>  Three days before, loyalist paramilitary Michael Stone had attacked an IRA funeral and killed three people. <P2-S2>  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. <P2-S3>  Believing the soldiers were loyalists intent on repeating Stone's attack, dozens of people surrounded and attacked their car. <P2-S4>  During this, Corporal Wood drew his service pistol and fired a shot in the air. <P2-S5>  The soldiers were then dragged from the car, beaten, and taken to nearby waste ground where they were stripped and shot dead. <SEP> <P3-S0> 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. <P3-S1>  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. <P3-S2>  As Stone then ran towards the nearby motorway, a large crowd began chasing him and he continued shooting and throwing grenades. <P3-S3>  Some of them caught him and began beating him, but he was rescued by the police and arrested. <P3-S4>  Three people had been killed and more than 60 wounded. <P3-S5>  The "unprecedented, one-man attack" was filmed by television news crews and caused shock around the world.