Question: Eileen Elizabeth Sheridan was known for her association with a firm headed by  English gangsters who were the foremost perpetrators of what in the East End of London?

full_context: Document 1: Roy Shaw: Royston Henry Shaw (11 March 1936 – 14 July 2012), also known as Roy "Pretty Boy" Shaw, Roy "Mean Machine" Shaw and Roy West, was an English millionaire, real estate investor, author and businessman from the East End of London who was formerly a criminal and Category A prisoner. During the 1970s–1980s, Shaw was active in the criminal underworld of London and was frequently associated with the Kray twins. Shaw is best remembered today for his career as a fighter on the unlicensed boxing scene, becoming an arch-rival with Lenny McLean.
Document 2: 2015–17 Irish gangland feud: A major feud between two criminal gangs in the Republic of Ireland has killed ten people. The Hutch gang, led by Gerry Hutch, and the Kinahan gang, led by Christy Kinahan, are the main participants.
Document 3: Eileen Grimshaw: Eileen Hazel Phelan (also Grimshaw) is a fictional character from the British ITV soap opera, "Coronation Street". Portrayed by Sue Cleaver, the character first appeared on-screen during the episode airing on 3 May 2000. She is perhaps best known for her friendships with Lloyd Mullaney (Craig Charles), Steve McDonald (Simon Gregson), Deirdre Barlow (Anne Kirkbride) and Liz McDonald (Beverley Callard).
Document 4: Sheridan v News Group Newspapers Ltd: Sheridan v News Group Newspapers ("Thomas Sheridan v News Group Newspapers Ltd") is a civil court case brought by Tommy Sheridan against the publishers of the "News of the World", which began in the Court of Session in Edinburgh, Scotland, on 4 July 2006. He alleged that the "News of the World" defamed his character through a series of articles in their publication.
Document 5: Eileen Percy: Eileen Percy (21 August 1900 – 29 July 1973) was an Irish actress of the silent era. She appeared in 68 films between 1917 and 1933. She was born in Belfast and died in Los Angeles, California. Her remains are buried at Chapel of the Pines Crematory. She was married to songwriter Harry Ruby. She was portrayed by Arlene Dahl in "Three Little Words" (1950).
Document 6: The Fall of the Krays: The Fall of the Krays is a 2016 low-budget British crime film directed by Zackary Adler and written by Ken and Sebastian Brown based on the true story of Ronnie and Reggie Kray. The film serves as the sequel to "The Rise of the Krays".
Document 7: Mary Jane Kelly: Mary Jane Kelly (c. 1863 – 9 November 1888), also known as Marie Jeanette Kelly, Fair Emma, Ginger, and Black Mary, is widely believed to be the final victim of the notorious unidentified serial killer Jack the Ripper, who killed and mutilated several women in the Whitechapel area of London from late August to early November 1888. She was about 25 years old, and living in poverty at the time of her death.
Document 8: Billy Hill (gangster): William "Billy" Charles Hill (13 December 1911 – 1 January 1984) was an English criminal, linked to smuggling, protection rackets, and extreme violence. He was one of the foremost perpetrators of organised crime in London from the 1920s through to the 1960s. He project managed cash robberies and, in a clever scam, defrauded London's High Society of millions at the card tables of John Aspinall's Clermont Club.
Document 9: Harry Roberts (criminal): Harry Maurice Roberts (born 21 July 1936) is an English career criminal who in 1966 instigated the Shepherd's Bush murders, in which three police officers were shot dead. The killings happened after plain-clothes officers approached a van in which Roberts and two other men were sitting in Braybrook Street, near Wormwood Scrubs prison in London. Roberts feared the officers would discover firearms his gang were planning to use in a robbery. He killed two, while one of his accomplices fatally shot the third.
Document 10: Eileen Derbyshire: Eileen Derbyshire, (born 6 October 1930) is a retired English actress, best known for her role as Emily Bishop in the soap opera "Coronation Street". She has played the character for 55 years as she joined permanently in 1961, making her the longest-serving female cast member in a British soap opera. She is the mother of sports journalist Oliver Holt. She was awarded an MBE in the 2010 Queens Birthday Honours list with her fellow co-star and friend, Barbara Knox.
Document 11: Eileen Sheridan (model): Eileen Elizabeth Sheridan (born 1936) is a former British beauty pageant contestant who was also known for her association with the London underworld 'firm' headed by the Kray twins; notably attending the funeral of their elder brother, Charlie, in 2000. And also attended the funerals of Ron and Reg Kray.
Document 12: Kray twins: Twin brothers Ronald "Ronnie" Kray (24 October 193317 March 1995) and Reginald "Reggie" Kray (24 October 19331 October 2000) were English gangsters who were the foremost perpetrators of organised crime in the East End of London during the 1950s and 1960s. With their gang, the Firm, the Krays were involved in armed robberies, arson, protection rackets, assaults and the murders of Jack "the Hat" McVitie and George Cornell.
Document 13: 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 14: Shooting of Eddie Hutch Snr: The shooting of Eddie Hutch Snr occurred on 8 February 2016. Eddie was the brother of Gerry Hutch, the leader of the Hutch gang, which was in a feud with the Kinahan gang, led by Christy Kinahan. The feud of the two criminal gangs, called the 2015–16 Irish gangland feud, in the Republic of Ireland resulted in the deaths of ten people.
Document 15: Eamon Kelly (criminal): Eamon Kelly (1947 – 4 December 2012) was a high-profile Irish convicted drug trafficker and former crime leader. Back in the 1980s, he was an Irish Republican Army member. Born in Dublin, he mentored another crime lord named Eamon Dunne who was murdered in 2010.
ground_truth: organised crime