Question: The Widower is a British television miniseries that portrays the life and crimes of convicted murderer Malcolm Webster,  an Englishman convicted of the murder of who? 

full_context: Document 1: Levi Bellfield: Yusuf Rahim (born Levi Rabetts; 17 May 1968), formerly known as Levi Bellfield, is an English serial killer. He was convicted on 25 February 2008 of the murders of Marsha McDonnell and Amelie Delagrange and the attempted murder of Kate Sheedy, and sentenced to life imprisonment.
Document 2: Fatal Vision (miniseries): Fatal Vision is a 1984 American television miniseries based on the account, in the book of the same name, of the murders in 1970 at Fort Bragg of the wife and daughters of U.S. Army officer Jeffrey R. MacDonald.
Document 3: A Very English Scandal (TV series): A Very English Scandal is an upcoming British three-part television miniseries, based on John Preston's novel of the same name, that is set to premiere on BBC One. The miniseries will be a dramatisation of the 1970s Jeremy Thorpe scandal in Britain, in which MP Jeremy Thorpe was tried and acquitted of conspiring to murder his former lover, Norman Scott.
Document 4: The Widower (miniseries): The Widower is a British television miniseries originally broadcast in three one-hour installments on ITV in 2014. The series portrays the life and crimes of convicted murderer Malcolm Webster. ITV described the show as: "The Widower tells how, over a 13-year period, a seemingly mild-mannered nurse, Malcolm Webster, set about poisoning and murdering his first wife, attempting to do the same to his second wife and moving on to a further scheme to deceive his third fiancée." The series was written by Jeff Pope.
Document 5: Society Murders: The Society Murders is the name given to the 4 April 2002 murders of husband and wife millionaire socialites Margaret Mary Wales-King, 69, and husband, Paul Aloysius King, 75, in Melbourne, Victoria, Australia, by Margaret's son, Matthew Wales. News media throughout Australia covered the crime and subsequent trial, which later became the subject of a book and a television film.
Document 6: Malcolm Webster (murderer): Malcolm John Webster (born 18 April 1959) is an Englishman convicted of the murder of his first wife in Scotland in 1994 and the attempted murder of his second wife. Both cases involved staged car crashes and were carried out for the life insurance money. A police profiler labelled him a sociopath.
Document 7: Charles Sobhraj: Sobhraj is widely believed to be a psychopath. He was driven to murder as a means to sustain his adventurous lifestyle. This, as well as his cunning and cultured personality, made him a celebrity long before his release from prison. He enjoyed the attention, charging large amounts of money for interviews and film rights. He has been the subject of four books and three documentaries. Sobhraj's return to India, where he was still eagerly sought by authorities, is believed to be the result of his yearning for attention and overconfidence in his own intellect.
Document 8: Lee Boyd Malvo: Lee Boyd Malvo (born February 18, 1985), also known as John Lee Malvo, is a convicted murderer who, along with John Allen Muhammad, committed murders in connection with the Beltway sniper attacks in the Washington Metropolitan Area over a three-week period in October 2002. Currently, he is serving multiple life sentences at Red Onion State Prison in Virginia, a supermax prison. Muhammad was executed in 2009. Although the two men's actions were classified by the media as psychopathy attributable to serial killer characteristics, researchers have debated whether or not their psychopathy meets this classification or that of spree killing. In 2012, Malvo claimed that he was sexually abused by Muhammad.
Document 9: Jack Unterweger: Johann "Jack" Unterweger (16 August 195029 June 1994) was an Austrian serial killer who murdered prostitutes in several countries. First convicted of a 1974 murder, he was released in 1990 as an example of rehabilitation. He became a journalist and minor celebrity, but within months started killing again. He committed suicide following a conviction for several murders. Austrian psychiatrist Dr. Reinhard Haller diagnosed him with narcissistic personality disorder in 1994.
Document 10: Dark Angel (2016 TV series): Dark Angel is a British two-part television drama miniseries, based on the adaptation of the book "Mary Ann Cotton: Britain's First Female Serial Killer" by David Wilson. The series was broadcast on 31 October and 7 November 2016, and starred Joanne Froggatt as protagonist Mary Ann Cotton, widely regarded as Britain's first female serial killer, who was found guilty of murder in March 1873 for the murder of three of her husbands, allegedly in order to collect on their insurance policies.
Document 11: Three Girls (miniseries): Three Girls is a three-part British television drama series, written by screenwriter Nicole Taylor, and directed by Philippa Lowthorpe, that broadcast on three consecutive nights between 16 and 18 May 2017 on BBC One. A co-production between BBC Studios and Studio Lambert, the series is a dramatised version of the events surrounding the Rochdale child sex abuse ring, and describes how the authorities failed to investigate allegations of rape because the victims were perceived as unreliable witnesses. The story is told from the viewpoint of three of the victims: fourteen-year-old Holly Winshaw (Molly Windsor), sixteen-year-old Amber Bowen (Ria Zmitrowicz) and her younger sister Ruby (Liv Hill); although the focus later shifts to sexual health worker Sara Rowbotham (Maxine Peake), who became the main whistleblower who drew attention to the case after repeated pleas for help from social services and the police fell on deaf ears.
Document 12: Fred West: Frederick Walter Stephen West (29 September 1941 – 1 January 1995) was an English serial killer who committed at least 12 murders between 1967 and 1987 in Gloucestershire, the majority with his second wife, Rosemary West.
Document 13: Randy Roth: Randy Roth is a convicted murderer and thief from Washington. He was convicted of the 1991 murder of his fourth wife, Cynthia Baumgartner Roth. He was suspected but never tried for murdering his second wife, Janis Roth, in 1981. In both deaths he was the only witness, he claimed the activity that led to the death was the idea of his deceased wife, and the bodies were cremated as quickly as could be arranged. He was also convicted of stealing in the form of defrauding insurers and the Social Security Administration and was sentenced to one year for theft and 50 years for first degree murder in 1992. At least two true crime books are based on Roth's crimes, "A Rose for Her Grave" by Ann Rule and "Fatal Charm" by Carlton Smith.
Document 14: Malcolm Webster: Malcolm Webster (born 12 November 1950 in Doncaster) is an English former professional footballer who made 449 appearances in the Football League playing as a goalkeeper for Arsenal, Fulham, Southend United and Cambridge United. He was assistant manager to Chris Turner at Cambridge United between 1986 and 1988 before taking a break from football. He then became a goalkeeping coach, has worked for clubs including Norwich City, Colchester United, Ipswich Town, Heart of Midlothian, Southampton and Crystal Palace, and also runs a goalkeeping school with business partner, Bolton Wanderers goalkeeping coach Fred Barber.
Document 15: Sun Hill Serial Killer: The Sun Hill Serial Killer was a major storyline from ITV's cop show "The Bill". Known originally as the "River Murders", the storyline spanned several months in 2002 and served as the exit for popular cast regular Cass Rickman (played by Suzanne Maddock). It was the first of several serial killer storylines from the show. Events came to a head in the New Year of 2003, when Acting DI Samantha Nixon discovers the truth and is taken hostage by the serial killer, before a final confrontation in which she is overpowered by DC Duncan Lennox, charged and thrown into the cells at Sun Hill Station.
ground_truth: his first wife