Background: Cream were a 1960s British rock power trio consisting of drummer Ginger Baker, guitarist/singer Eric Clapton and lead singer/bassist Jack Bruce. The group's third album, Wheels of Fire (1968), was the world's first platinum-selling double album. The band is widely regarded as the world's first successful supergroup. In their career, they sold more than 15 million copies of their albums worldwide.
Context: In 1968 came the band's third release, Wheels of Fire, which topped the American charts. Still a relative novelty, the "double album" of two LP discs was well suited to extended solos. Wheels of Fire studio recordings showcased the band moving slightly away from the blues and more towards a semi-progressive rock style highlighted by odd time signatures and various orchestral instruments. However, the band did record Howlin' Wolf's "Sitting on Top of the World" and Albert King's "Born Under a Bad Sign". According to a BBC interview with Clapton, the record company, also handling Albert King, asked the band to cover "Born Under a Bad Sign", which became a popular track off the record. The opening song, "White Room", became a radio staple. Another song, "Politician", was written by the band while waiting to perform live at the BBC. The album's second disc featured three live recordings from the Winterland Ballroom and one from the Fillmore. Clapton's second solo from "Crossroads" has made it to the top 20 in multiple "greatest guitar solo" lists. After the completion of Wheels of Fire in mid-1968, the band members had had enough and wanted to go their separate ways. Baker stated in a 2006 interview with Music Mart magazine, "It just got to the point where Eric said to me: 'I've had enough of this,' and I said so have I. I couldn't stand it. The last year with Cream was just agony. It damaged my hearing permanently, and today I've still got a hearing problem because of the sheer volume throughout the last year of Cream. But it didn't start off like that. In 1966, it was great. It was really a wonderful experience musically, and it just went into the realms of stupidity." Bruce and Baker's combustible relationship proved even worse as a result of the strain put upon the band by non-stop touring, forcing Clapton to play the perpetual role of peacekeeper. Clapton had also become interested in the music of Bob Dylan's former backing group, now known as the Band, and their debut album, Music from Big Pink, which proved to be a welcome breath of fresh air, to Clapton, in comparison to the incense and psychedelia that had defined Cream. Furthermore, he had read a scathing Cream review in Rolling Stone, a publication he had much admired, in which the reviewer, Jon Landau, called him a "master of the blues cliche." In the wake of that article, Clapton wanted to end Cream and pursue a different musical direction. At the beginning of their farewell tour on 4 October 1968, in Oakland, California, nearly the entire set consisted of songs from Wheels of Fire: "White Room", "Politician", "Crossroads", "Spoonful", "Deserted Cities of the Heart", and "Passing the Time" taking the place of "Toad" for a drum solo. "Passing the Time" and "Deserted Cities" were quickly removed from the setlist and replaced by "Sitting on Top of the World" and "Toad".
Question: What was Wheels of Fire: 1968?
Answer: the band's third release,

Background: Harold Frederick Shipman (14 January 1946 - 13 January 2004) was a British general practitioner and one of the most prolific serial killers in recorded history. On 31 January 2000, a jury found Shipman guilty of fifteen murders for killing patients under his care. He was sentenced to life imprisonment with the recommendation that he never be released. The Shipman Inquiry, a two-year-long investigation of all deaths certified by Shipman, which was chaired by Dame Janet Smith, examined Shipman's crimes.
Context: In March 1998, Linda Reynolds of the Donneybrook Surgery in Hyde, prompted by Deborah Massey from Frank Massey and Son's funeral parlour, expressed concerns to John Pollard, the coroner for the South Manchester District, about the high death rate among Shipman's patients. In particular, she was concerned about the large number of cremation forms for elderly women that he had needed countersigned. The matter was brought to the attention of the police, who were unable to find sufficient evidence to bring charges; the Shipman Inquiry later blamed the police for assigning inexperienced officers to the case. Between 17 April 1998, when the police abandoned the investigation, and Shipman's eventual arrest, he killed three more people. His last victim was Kathleen Grundy, who was found dead at her home on 24 June 1998. Shipman was the last person to see her alive and later signed her death certificate, recording "old age" as the cause of death. In August 1998, taxi driver John Shaw, from Hyde, contacted the police, informing them that he suspected Shipman of murdering 21 of his patients. Grundy's daughter, lawyer Angela Woodruff, became concerned when solicitor Brian Burgess informed her that a will had been made, apparently by her mother. There were doubts about its authenticity. The will excluded her and her children, but left PS386,000 to Shipman. Burgess told Woodruff to report it, and she went to the police, who began an investigation. Grundy's body was exhumed and when examined, was found to contain traces of diamorphine, often used for pain control in terminal cancer patients. Shipman claimed that she was an addict and showed them comments in his computerised medical journal, but a program on his computer showed they were written after her death. Shipman was arrested on 7 September 1998, and was found to own a typewriter of the kind used to make the forged will. The police then investigated other deaths Shipman had certified, and created a list of 15 specimen cases to investigate. They discovered a pattern of his administering lethal doses of diamorphine, signing patients' death certificates, and then falsifying medical records to indicate that they had been in poor health. Prescription For Murder, a 2000 book by journalists Brian Whittle and Jean Ritchie, advanced two theories on Shipman's motive for forging the will: that he wanted to be caught because his life was out of control, or that he planned to retire at age 55 and leave the UK. In 2003, David Spiegelhalter et al. suggested that "statistical monitoring could have led to an alarm being raised at the end of 1996, when there were 67 excess deaths in females aged over 65 years, compared with 119 by 1998."
Question: How did he kill them?
Answer:
the last person to see her alive and later signed her death certificate, recording "old age" as the cause of death.