Question: Who died first, Billy Mackenzie or Simon Neil?

full_context: Document 1: Simon Efemey: Simon Efemey ) is a record producer, most noted for his work with metal and hard rock groups, including Napalm Death, Paradise Lost, Obituary, Amorphis, Deceased and The Wildhearts. He has also provided live sound mixing with bands including The Wonder Stuff, Jesus Jones, Diamond Head, Orson, Obituary and Napalm Death.
Document 2: Simon Neil: Simon Alexander Neil (born 31 August 1979) is a Scottish vocalist, guitarist, and songwriter.
Document 3: Neil Mackie: Neil Mackie (born 1946) is a Scottish tenor. During his career as a singer, he was associated with the works of 20th-century composers, particularly Benjamin Britten, and Peter Maxwell Davies. He created the title role in Davies's opera "The Martyrdom of St Magnus" and Sandy in his "The Lighthouse" and performed in the world premieres of Davies's "Into the Labyrinth", cantata for tenor and chamber orchestra, and "The Jacobite Rising". He has also premiered vocal works by Elliott Carter ("In Sleep, in Thunder"), Hans Werner Henze ("Three Auden Songs") and songs by Benjamin Britten.
Document 4: Simon Kirke: Simon Frederick St George Kirke (born 28 July 1949) is an English rock drummer best known as a member of Free and Bad Company.
Document 5: Jimmy Somerville: James William Somerville (born 22 June 1961) is a Scottish pop singer and songwriter. He sang in the 1980s with the pop groups Bronski Beat and The Communards, and has also had a solo career. He is known in particular for his falsetto singing voice.
Document 6: Stuart Murdoch (musician): Stuart Lee Murdoch (born 25 August 1968) is a Scottish musician, writer and filmmaker, and the lead singer and songwriter for the indie pop band Belle and Sebastian.
Document 7: Neil Halstead: Neil Halstead (born 7 October 1970) is an English musician born in Reading, Berkshire, England. He has been hailed by AllMusic as “one of Britain's most respected songwriters", and "Time Out" as "one of Britain's greatest songwriters".
Document 8: Billy Mackenzie: William MacArthur "Billy" MacKenzie (27 March 1957 – 22 January 1997) was a Scottish singer, with a distinctive high tenor voice; he was best known as a member of The Associates.
Document 9: Neil Fallon: Neil Patrick Fallon (October 25, 1971 in Portsmouth, Virginia) is the lead singer and occasional rhythm guitarist, keyboardist and percussionist for the rock band Clutch, and lead singer for The Company Band. He also joined The Bakerton Group on guitar starting with their "El Rojo" album.
Document 10: Billy MacKenzie (motorcyclist): Billy MacKenzie (born 7 April 1984 in Edinburgh) is a Scottish professional motocross racer.
Document 11: The Associates (band): The Associates were a Scottish rock act, formed in Dundee in 1979 by singer Billy Mackenzie and guitarist Alan Rankine. The group first gained recognition after releasing an unauthorized cover of David Bowie's "Boys Keep Swinging" in 1979, which landed them a contract with Fiction Records. They followed with their debut album "The Affectionate Punch" in 1980 and the singles collection "Fourth Drawer Down" in 1981, both to critical praise.
Document 12: Moon Guitars: Moon Guitars was established in 1979 by Jimmy Moon in a small workshop on the Island of Arran in Scotland. His reputation grew quickly and he was soon making (mostly electric guitars) and repairing instruments for many of Scotland’s finest musicians. A move to Glasgow was made in 1985 and for the following ten years, the company produced mostly custom electric instruments for many of Scotland’s well-known bands including Big Country, Texas, Simple Minds, Wet Wet Wet and Del Amitri. The next five years saw a change in the industry, and recognising this shift, Jimmy returned to his roots and began producing acoustic guitars and the entire mandolin family. Acoustic guitars range from Standard Series through to Master Grade instruments built with exotic timbers. The range also includes signature models for Bryan Adams and Scottish folk singer Dougie MacLean. Some current users of Moon acoustic instruments include: Adele, Ally McErlaine (Texas & Red Sky July), Bryan Adams, Dougie MacLean, Guy Berryman (Coldplay), Paolo Nutini, Trevor Rabin, Steve Earle, Peter Rowan, Roy Harper and the Scissor Sisters.
Document 13: Alan Rankine: Alan Rankine (born 17 May 1958) is a Scottish musician and record producer best known as keyboardist/guitarist for the rock band Associates, which he co-founded with Billy Mackenzie in the late 1970s.
Document 14: Scottish music (1980–1989): During the 1980s, Scottish music featured post-punk bands exemplified by Simple Minds and Josef K, and bands like Runrig that remained closer to the Scottish dance music tradition. Folk rock or Celtic rock bands launched in the 1980s included The Waterboys and The Proclaimers. Among the folk singers of the time were Dick Gaughan and Bill Drummond, and Ewan MacColl who died in 1989.
Document 15: Neal X: Neal X (born Neal Whitmore, 11 September 1960 in Henley-on-Thames, England) was the guitarist with the British band Sigue Sigue Sputnik. They had a #3 UK hit single with "Love Missile F1-11" in 1986. He has also worked as a sideman for Adam Ant and Marc Almond. Neal has now started a new band known as The Montecristos.
ground_truth: William MacArthur "Billy" MacKenzie