Question: A peasant and trade union leader was assassinated by a man with which mistaken surname?

Context paragraphs:
Léon Angor: Léon Angor (born July 13, 1928) was a Congolese politician and trade union leader.  He was a leader of the CASL trade union centre.  He was the president of the National Assembly of the Republic of the Congo between 1964 and 1966.  Angor was identified as part of the pro-China wing of the ruling National Movement of the Revolution.  Under Angor's aegis, the Congolese Trade Union Confederation was formed in March 1964.

Nepal Progressive Trade Union Federation: Nepal Progressive Trade Union Federation is a central trade union federation in Nepal.  It is the labour wing of the Communist Party of Nepal (United Marxist).  NPTUF was formed on November 19, 2005, through the unification of the Nepal Trade Union Federation (trade union of Communist Party of Nepal (United)) and Nepal Trade Union Centre (trade union of Communist Party of Nepal (Marxist)).  NPTUF is a constituent of the United Trade Union Movement Coordination Committee.

Proletarian parties in Japan, 1925–32: The proletarian parties were a group of political parties in Japan.  Several proletarian parties were launched after enactment of the Universal Manhood Suffrage Act in 1925.  The Farmer-Labour Party had been founded in December 1925, but banned after only two hours of existence.  Three major proletarian parties emerged during 1926, all closely linked to trade union movements and the divisions between the trade unions were largely replicated in divisions between the political parties.  The pro-communist trade union centre "Hyōgikai" backed the Labour-Farmer Party.  The centrist Japan Labour Union League backed the Japan Labour-Farmer Party.  The moderate "Sodomei" trade union centre backed the Social Democratic Party.  All these three parties were constructed on the notion of a worker–peasant class alliance.  Another proletarian party in the fray, the Japan Farmers Party differentiated themselves from this pattern by declaring themselves as a party 'by farmers, for farmers'.  There were also some local proletarian parties.

Unia (union): Unia is a trade union in Switzerland.  It is the largest member of the Swiss Trade Union Confederation (SGB or USS) with 200,000 members.  In addition its collective agreements affect the conditions of a million Swiss workers.  It was formed on 16 October 2004 from the merger of the Trade union for Construction and Industry (GBI), the Trade Union for Industry, Trade and Services (SMUV), the VHTL, the old (working in the service sector) "unia" and the Geneva trade union in the tertiary sector.

Luciano Leggio: Luciano Leggio (] ; 6 January 1925 – 15 November 1993) was an Italian criminal and leading figure of the Sicilian Mafia.  He was the head of the Corleonesi, the Mafia faction that originated in the town of Corleone.  He's universally known with the surname Liggio, a result of a misspelling in court documents in the 1960s.

Sukomal Sen: Sukomal Sen is an Indian trade union leader.  He is the General Secretary of the Trade Union International of Public and Allied Employees, a structure connected to the World Federation of Trade Unions.  He is also General Secretary of the All India State Government Employees Federation.  He is a Central Committee member of the Communist Party of India (Marxist).  Sen was a Rajya Sabha member 1982-1994.  He is the author of two books:1.  Working Class of India: History of Emergence and Movement 1830-1990 and 2. May Day and Eight hours' struggle in India: A political history

Ver.di: The Vereinte Dienstleistungsgewerkschaft (German United Services Trade Union), which is known as Verdi for short and writes its name as "ver.di", pronounced [ˈvɛʁdiː], is a German trade union based in Berlin, Germany.  It was established in the year 2001 as the result of a merger of five individual unions and is a member of the German Trade Union Confederation (DGB).  With around two million members, Verdi is the second largest German trade union after IG Metall.  It currently employs around 3000 members of staff in Germany and has an annual income of approximately 454 million Euros obtained from membership subscriptions.  The trade union is divided into 10 federal state districts and 13 divisions and is managed by a National Executive Board (Bundesvorstand) with 14 members.  Frank Bsirske has been the Chairman of Verdi ever since it was first founded.

Bill Morris, Baron Morris of Handsworth: William Manuel Morris, Baron Morris of Handsworth, OJ, DL (born 19 October 1938), generally known as Bill Morris, is a former British trade union leader.  He was General Secretary of the Transport and General Workers' Union from 1992 to 2003, and the first black leader of a major British trade union.

Placido Rizzotto: Placido Rizzotto (Corleone, January 2, 1914 – March 10, 1948) was an Italian socialist peasant and trade union leader from Corleone, who was assassinated by Sicilian Mafia boss Luciano Leggio.  Pieces of Rizzotto's mutilated body were discovered two years later at the bottom of a cliff with his limbs chained up, and a bullet hole in his head.  When he was killed, Rizzotto was doing activist work with farm laborers, trying to help them take over unfarmed land on large estates in the area.

National Union of Government Employees: In 1957 the National Union of Government Employees (NUGE), a former trade union in Trinidad and Tobago, was formed as a result of a merger between the Industrial and Railway Employees Trade Union, the Government Farm and Nursery Workers Trade Union and the Works and Hydraulics Industrial Workers Union.  Later that same year, the Communication Services and General Workers Trade Union transferred its daily paid members to the NUGE and were followed in 1959 by the Public Works and Public Service Workers Trade Union.

Supporting paragraphs: Placido Rizzotto Luciano Leggio
Answer: Liggio