Possessed

Possessed is an American death metal band, originally formed in 1983 near San Fransisco, California. Noted for their fast style of playing and Jeff Becerra's guttural vocals, they are widely considered to be one of the first death metal bands.  The name of the genre comes from their first demo released in 1984, entitled "Death Metal".  Their 1985 album Seven Churches is still considered to be one of the premier death metal albums of all time.