Background: Beastie Boys were an American rap rock group from New York City, formed in 1981. For the majority of their career, the group consisted of Michael "Mike D" Diamond (vocals, drums), Adam "MCA" Yauch (vocals, bass) and Adam "Ad-Rock" Horovitz (vocals, guitar). Originally formed as a four-piece hardcore punk band, the Young Aborigines, in 1978 by Diamond (vocals), John Berry (guitar), Yauch (bass) and Kate Schellenbach (drums), the band appeared on the compilation cassette New York Thrash, contributing two songs from their first EP, Polly Wog Stew, in 1982. Berry left shortly thereafter, and was replaced by Horovitz.
Context: Prior to forming the Beastie Boys, Michael Diamond was part of a number of bands such as the Walden Jazz Band, BAN, and The Young Aborigines. The Beastie Boys formed in July 1981 when the Young Aborigines bassist Jeremy Shatan left New York City for the summer and the remaining members Michael Diamond, John Berry and Kate Schellenbach formed a new hardcore punk band with Adam Yauch called Beastie Boys. The band supported Bad Brains, the Dead Kennedys, the Misfits and Reagan Youth at venues such as CBGB, A7, Trudy Hellers Place and Max's Kansas City, playing at the latter venue on its closing night. In November 1982, the Beastie Boys recorded the 7" EP Polly Wog Stew at 171A studios, an early recorded example of New York hardcore. On November 13, 1982, the Beastie Boys played Philip Pucci's birthday for the purposes of his short concert film of the Beastie Boys, Beastie. Pucci held the concert in Bard College's Preston Drama Dance Department Theatre. This performance marked the Beastie Boys' first on screen appearance in a published motion picture. Pucci's concept for Beastie was to distribute a mixture of both a half dozen 16 mm Bell & Howell Filmo cameras, and 16 mm Bolex cameras to audience members and ask that they capture the Beastie Boys performance from the audience's own point of view while a master sync sound camera filmed from the balcony of the abandoned theater where the performance was held. The opening band for that performance was The Young and the Useless, which featured Adam Horovitz as the lead singer. A one-minute clip of Beastie was subsequently excerpted and licensed by the Beastie Boys for use in the "Egg Raid on Mojo" segment of the "Skills to Pay the Bills" long-form home video released by Capitol Records. "Skills to Pay the Bills" later went on to be certified Gold by the Recording Industry Association of America (RIAA). Berry left the group in 1982 (later forming Thwig, Big Fat Love and Bourbon Deluxe) and was replaced by Adam Horovitz, guitarist of The Young and the Useless, who had become close friends with the Beastie Boys at this point; Schellenbach left the band in 1984 and was not replaced, with Diamond filling the role of drummer. The band also recorded and then performed its first hip hop track, "Cooky Puss", based on a prank call by the group to Carvel Ice Cream franchise in 1983. It was a part of the new lineup's first EP, also called Cooky Puss, which was the first piece of work that showed their incorporation of the underground rap phenomenon and the use of samples. It quickly became a hit in New York underground dance clubs and night clubs upon its release. In 1983, the new lineup released the Cooky Puss EP, which offered the first evidence of them picking up on the underground rap phenomenon and the use of samples. "Beastie Revolution" was later sampled for a British Airways commercial. The Beastie Boys sued them over the use of the song, earning them $40,000 in royalties.
Question: What did they do after the Polly Wog Stew release?
Answer: On November 13, 1982, the Beastie Boys played Philip Pucci's birthday for the purposes of his short concert film of the Beastie Boys, Beastie.

Background: Oystein Aarseth (Norwegian: ['oystein 'os@t]; 22 March 1968 - 10 August 1993), better known by his stage name Euronymous, was a Norwegian guitarist. Euronymous was a founder of and central figure in the early Norwegian black metal scene. He was a co-founder of the Norwegian black metal band Mayhem. He was also founder and owner of the extreme metal record label Deathlike Silence Productions and record shop Helvete.
Context: In early 1993, animosity arose between Euronymous and Vikernes, and between Euronymous and the Swedish black metal scene. On the night of 10 August 1993, Vikernes and Snorre 'Blackthorn' Ruch drove from Bergen to Euronymous' apartment at Toyengata in Oslo. Upon their arrival a confrontation began and Vikernes fatally stabbed Euronymous. His body was found on the stairs outside the apartment with 23 stab wounds - two to the head, five to the neck, and 16 to the back. Euronymous' murder was initially blamed on Swedish black metallers by the media. It has been speculated that the murder was the result of a power struggle, a financial dispute over Burzum records, or an attempt at "outdoing" the stabbing in Lillehammer. Vikernes denies all of these, claiming that he attacked Euronymous in self-defense. He says that Euronymous had plotted to stun him with an electroshock weapon, tie him up and torture him to death while videotaping the event. Vikernes explains: "If he was talking about it to everybody and anybody I wouldn't have taken it seriously. But he just told a select group of friends, and one of them told me". He said Euronymous planned to use a meeting about an unsigned contract to ambush him. Blackthorn stood outside smoking while Vikernes climbed the stairs to Euronymous' apartment on the fourth floor. Vikernes said he met Euronymous at the door and handed him the contract, but when he stepped forward and confronted Euronymous, Euronymous "panicked" and kicked him in the chest. The two got into a struggle and Vikernes stabbed Euronymous to death. Vikernes defends that most of Euronymous' cut wounds were caused by broken glass he had fallen on during the struggle. After the murder, Vikernes and Blackthorn drove back to Bergen. On the way, they stopped at a lake where Vikernes disposed of his bloodstained clothes. The self-defense story is doubted by Faust and other members of the scene. According to Vikernes, Blackthorn only came along to show Euronymous some new guitar riffs and was "in the wrong place at the wrong time". Blackthorn claims that, in the summer of 1993, he was almost committed to a mental hospital but fled to Bergen and stayed with Vikernes. He said Vikernes planned to murder Euronymous and pressured him into coming along. Blackthorn said of the murder, "I was neither for nor against it. I didn't give a shit about Oystein". Vikernes called Blackthorn's claims a "defense [...] to make sure I couldn't blame him [for the murder]".
Question: Who murdered him?
Answer:
Vikernes fatally stabbed Euronymous.