Question: The first televised speech in the House of Commons of the United Kingdom was made by a politician that was assassinated by what group?

full_context: Document 1: 1981 United Kingdom budget: The 1981 United Kingdom budget was delivered by Geoffrey Howe, the then Chancellor of the Exchequer, to the House of Commons on 10 March 1981. It was Geoffrey Howe's second budget and the second of the first Thatcher ministry. The budget represented a strongly monetarist response to the stagflation and high government borrowing which the UK was suffering at the time. The budget speech lasted for 91 minutes.
Document 2: Death of Colin Roach: Colin Roach was a 21-year-old black British man who died from a gunshot wound inside the entrance of Stoke Newington police station, in the London Borough of Hackney, on 12 January 1983. Amid allegations of a police cover-up, the case became a cause célèbre for civil rights campaigners and black community groups in the United Kingdom. Prior to Roach's death, Hackney Black People's Association had been calling for a public inquiry into policing in the area, alleging that there existed a culture of police brutality, wrongful detention of black people, racial harassment, and racially motivated "stopping and searching." Ernie Roberts, the MP for Hackney North and Stoke Newington, said that there had been "a complete breakdown of faith and credibility in the police" in the area and the Commission for Racial Equality called for a full inquiry into both the death of Roach and the policing in Hackney generally. In June 1983 a coroner's jury returned a majority verdict of suicide. INQUEST, the United Kingdom pressure group founded following the death of Blair Peach at the hands of a police officer in April 1979, was highly critical of the coroner's directions to the jury, and said that he had wrongly pointed them towards a verdict of suicide.
Document 3: Parliamentary Brief: First published in 1992, Parliamentary Brief is a monthly British political magazine circulated by request to members of the British House of Commons, members of the House of Lords, senior civil servants, and political journalists. Reports—some produced in association with international institutions, including the United Nations—are distributed to a wider audience. This includes, for example, the European Union, public sector bodies, and corporate organisations.
Document 4: Ian Gow: Ian Reginald Edward Gow, {'1': ", '2': ", '3': ", '4': "} ( ; 11 February 1937 – 30 July 1990) was a British Conservative politician and solicitor. While serving as Member of Parliament (MP) for Eastbourne, he was assassinated by the Provisional Irish Republican Army (IRA), who exploded a bomb under his car outside his home in East Sussex. He was the last of a series of British politicians to be assassinated by the IRA, and the most recent sitting MP to be killed before the June 2016 murder of Jo Cox.
Document 5: Ian Murray (British politician): Ian Murray (born 10 August 1976) is a British Labour Party politician who has represented Edinburgh South as Member of Parliament (MP) since the 2010 general election. He served as an Edinburgh City Councillor for Liberton & Gilmerton Ward from 2003 to 2010, before his Westminster election as an Edinburgh MP. From 2015 to 2017, Murray was the only Labour Party MP representing a Scottish constituency in the House of Commons.
Document 6: First televised speech in the UK Parliament: The first televised speech in the House of Commons of the United Kingdom was made by Ian Gow, the Conservative Member of Parliament for Eastbourne, on 21 November 1989.
Document 7: David Prowse (politician): David John Prowse (born 10 March 1941), a former Australian politician, was the first Speaker of the Australian Capital Territory Legislative Assembly, serving between 1989 and 1992. Elected at the 1989 general election to the inaugural multi-member single electorate unicameral Australian Capital Territory Legislative Assembly representing, initially, the No Self-Government Party, Prowse then sat as an independent, before joining the Liberal Party of Australia.
Document 8: Rivers of Blood speech: On 20 April 1968, British Member of Parliament Enoch Powell addressed a meeting of the Conservative Political Centre in Birmingham, UK. His speech strongly criticised Commonwealth immigration to the United Kingdom and the then-proposed Race Relations Bill, and became known as the "Rivers of Blood" speech, although Powell always referred to it as "the Birmingham speech". The expression "rivers of blood", which did not appear in the original speech, is an allusion to a line from Virgil's "Aeneid" quoted by Powell (""As I look ahead, I am filled with foreboding; like the Roman, I seem to see the River Tiber foaming with much blood"").
Document 9: Assassination of Sir Arthur Charles: The Assassination of Sir Arthur Charles took place on 1 September 1965 during the Aden Emergency. Charles was the speaker of the Aden State Legislative Assembly. He was shot in Wednesday night outside a tennis club by Hasan al-Zag and died shortly afterwards. Charles had been in Aden since 1959 and was knighted in June 1965.
Document 10: Downing Street mortar attack: The Downing Street mortar attack was carried out by the Provisional Irish Republican Army (IRA) on 7 February 1991. The IRA launched homemade mortar shells at 10 Downing Street, London, the official residence of the Prime Minister of the United Kingdom. It was an attempt to assassinate Prime Minister John Major and his War Cabinet, who were meeting to discuss the Gulf War. One of the heavy mortar shells exploded in the back garden of number 10, only yards from the cabinet office. Due to the bomb-proof windows, none of the cabinet were hurt, though four other people received minor injuries, including two police officers. The other two shells overshot Downing Street and landed on a green nearby.
Document 11: Ian Paisley: Ian Richard Kyle Paisley, Baron Bannside, PC (6 April 1926 – 12 September 2014) was a loyalist politician and Protestant religious leader from Northern Ireland.
Document 12: Damian Green: Damian Howard Green (born 17 January 1956) is a British politician who has been the Conservative Member of Parliament for Ashford since 1997 and the First Secretary of State and Minister for the Cabinet Office since 11 June 2017. Green was born in Barry, Wales, and studied PPE at Balliol College, Oxford. Before entering politics, Green worked as a journalist for the BBC, Channel 4 and "The Times".
Document 13: Roshonara Choudhry: Roshonara Choudhry (Bengali: রুশনারা চৌধুরী ; born 1989) is a former British student and an Islamic extremist who stabbed British MP Stephen Timms on 14 May 2010 during his constituency surgery in an attempt to kill him. She was found guilty of attempted murder and jailed for life with a minimum term of 15 years. Choudhry is the first al-Qaeda sympathiser to attempt an assassination in Britain.
Document 14: Euan Edworthy: Euan Edworthy was educated at Ampleforth College, UK, and graduated from the University of Wales, Cardiff, in 1991 with a degree in Politics and History. In 2004, he initiated continental Europe’s first ever Speakers' Corner in Prague and in 2007 established Speakers’ Corner Trust, an international charity, with former British MP Peter Bradley which promotes freedom of speech. Euan is also a Trustee of the Anglo Czech Education Fund and conceived the idea for the Winged Lion Memorial to commemorate Czechoslovaks who fought with the Royal Air Force during the Second World War. The monument was unveiled in Prague on 17 June 2014 to much local and global acclaim. He has also established the Czech Children of Courage Award and Prague’s Red Nose Day Campaign.
Document 15: Prime Minister's Official Spokesperson: The Prime Minister's Official Spokesperson or alternatively Prime Minister's Official Spokesman/Spokeswoman is a position in the United Kingdom's Civil Service, located in the Prime Minister's Office in 10 Downing Street and used by the British Prime Minister to convey information to the public. The Prime Minister's Official Spokesperson usually addresses a small group of press and media correspondents, known as lobby correspondents, each morning to deliver statements on current events on behalf of the Prime Minister.
ground_truth: Provisional Irish Republican Army