Slagel is known for having initiated the Metal Massacre series of compilation albums in 1982, the first of which included the first commercial recording by Metallica.
[1] As the fanzine started to pick up steam, Slagel began working as a columnist for Kerrang!, Sounds Magazine, and other music publications.
The album featured the first recordings of Ratt, Steeler, Black 'n Blue, Malice, Avatar, Cirith Ungol, Bitch and Metallica.
Slagel founded Metal Blade Records in 1982, and released albums by Warlord, Bitch, Armored Saint and Slayer's Show No Mercy, which sold 40,000 copies worldwide.
Following Body Count's troubles, WEA introduced new policies regarding controversial lyrics, and attempted to censor GWAR's America Must Be Destroyed.