This is a list of sitting members of the House of Commons of the United Kingdom (MPs) who died by assassination or other culpable homicide.
Spencer Perceval is the only British prime minister to have been assassinated, having been shot on 11 May 1812 by John Bellingham, a merchant who blamed the government for his debt. From 1882 to 1990, six MPs were assassinated by Irish nationalists. The murder of Jo Cox on 16 June 2016 was committed by a white supremacist; Cox was both the first female and the first Labour MP to be assassinated. The latest incident, the murder of Sir David Amess on 15 October 2021, was committed by an Islamist terrorist.
Spencer Perceval was a British statesman and barrister who was Prime Minister of the United Kingdom from October 1809 until his assassination in May 1812. He is the only British prime minister to have been assassinated, and the only solicitor-general or attorney-general to have become prime minister.
David Frank Bellotti was a British Liberal Democrat politician who was Member of Parliament (MP) for the Eastbourne constituency from 1990 to 1992.
Sir David Anthony Andrew Amess was a British politician who served as Member of Parliament (MP) for Southend West from 1997 until his murder in 2021. He previously served as MP for Basildon from 1983 to 1997. A member of the Conservative Party, he was a Catholic with socially conservative political views, and was in favour of Britain leaving the European Union.
Ian Reginald Edward Gow was a British politician and solicitor. As a member of the Conservative Party, he served as Member of Parliament (MP) for Eastbourne from 1974, until he was assassinated in 1990 by a car bomb planted by the Provisional Irish Republican Army (IRA) outside his home in East Sussex.
His Majesty's Prison Belmarsh is a Category A men's prison in Thamesmead, southeast London, England. The prison is used for high-profile cases, particularly those concerning national security. Within the grounds is the High Security Unit (HSU), which consists of 48 single cells. It is run by His Majesty's Prison Service. The prison has been called "Britain's Guantanamo Bay" due to the long-term detention of terrorism suspects without charge. Considered the toughest prison in the UK, Belmarsh is also notoriously known as "Hellmarsh" owing to the high number of physical and authority abuses reported by both the prison's inmates, and by human rights activists.
A political surgery, constituency surgery, constituency clinic, mobile office or sometimes advice surgery, in British and Irish politics, is a series of one-to-one meetings that a Member of Parliament (MP), Teachta Dála (TD) or other political officeholder may have with their constituents. At a surgery, constituents may raise issues of concern or request assistance in regard to local or national government matters. Often the constituent's issue will be followed up by a caseworker or assistant. Surgery meetings are usually confidential in contrast to town hall meetings, which are open to many people at the same time.
Batley and Spen was a constituency in the House of Commons of the UK Parliament. The most recent MP was Kim Leadbeater, a Labour politician, elected in a 2021 by-election by a 323-vote margin. The seat had returned Labour MPs since the 1997 general election.
Southend West and Leigh is a constituency in the House of Commons of the UK Parliament. In the 2024 general election the seat was won by David Burton-Sampson for Labour. It was previously held by Anna Firth who won the 2022 by-election, following the murder of the incumbent MP, David Amess.
Sir Nigel Hamilton Sweeney KC, styled The Hon. Mr Justice Sweeney, is a former High Court judge. He retired on 18 March 2023.
On 11 May 1812, at about 5:15 pm, Spencer Perceval, the prime minister of the United Kingdom of Great Britain and Ireland, was shot dead in the lobby of the House of Commons by John Bellingham, a Liverpool merchant with a grievance against the government. Bellingham was detained; four days after the murder, he was tried, convicted and sentenced to death. He was hanged at Newgate Prison on 18 May, one week after the assassination and one month before the start of the War of 1812. Perceval remains the sole British prime minister to have been assassinated.
Michael Joseph Patrick Kane is a British politician who has served as a Parliamentary Under-Secretary of State for Transport since July 2024. A member of the Labour Party, Kane has served as Member of Parliament (MP) for Wythenshawe and Sale East since 2014.
Helen Joanne Cox was a British politician who served as Member of Parliament (MP) for Batley and Spen from May 2015 until her murder in June 2016. She was a member of the Labour Party.
On 20 October 2016, a by-election was held in the UK parliamentary constituency of Batley and Spen. It was triggered by the murder of the incumbent member of parliament (MP), Jo Cox, on 16 June 2016. The Labour candidate, Tracy Brabin, won with 85.8% of the vote. Four parties with parliamentary representation did not enter candidates, out of respect for Cox. Nine candidates contested against Labour, and none reached the 5% threshold to keep their deposit.
On 16 June 2016, Jo Cox, a British Labour Party politician and Member of Parliament (MP) for Batley and Spen, died after being shot and stabbed multiple times in Birstall, West Yorkshire. In November 2016, 53-year-old Thomas Alexander Mair was found guilty of her murder and other offences connected to the killing in an act of terrorism. The judge concluded that Mair wanted to advance white supremacy and exclusive nationalism most associated with Nazism and its modern forms. He was sentenced to life imprisonment with a whole life order.
Kim Michele Leadbeater is a British Labour Party politician who has been the Member of Parliament (MP) for Spen Valley, formerly Batley and Spen, since 2021.
On 15 October 2021, Sir David Amess, a British Conservative Party politician and Member of Parliament for Southend West, was fatally stabbed at a constituency surgery at Belfairs Methodist Church Hall in Leigh-on-Sea, Essex. His killer was Ali Harbi Ali, a British Islamic State sympathiser, who was arrested at the scene. In April 2022, Ali was convicted of murder and the preparation of terrorist acts, and sentenced to life imprisonment with a whole life order.
A by-election was held on 3 February 2022 in the parliamentary constituency of Southend West following the murder of the Conservative MP Sir David Amess on 15 October 2021. Amess had been the MP for the constituency since 1997, and previously represented the nearby seat of Basildon from 1983 to 1997. Similarly to the 2016 Batley and Spen by-election—held after Labour MP Jo Cox was murdered—the major opposition parties declined to stand out of respect for Amess. The Conservative candidate Anna Firth won the by-election with 86% of the vote, with a turnout of 24%. No other candidate reached the 5% threshold to save their election deposit.
Operation Bridger is a nationwide police protection security programme in the United Kingdom designed to offer Members of Parliament (MPs) access to extra security in their homes and constituency offices. It was established in 2016 in the wake of the murder of Labour MP Jo Cox, who was killed at a constituency surgery.
There is no doubt that this murder was done for the purpose of advancing a political, racial and ideological cause namely that of violent white supremacism and exclusive nationalism most associated with Nazism and its modern forms.