Question: Which group is credited with laying the groundwork for this extreme genre of music that originated in the early to mid-1980s, which Citizens Arrest blended in their music?
Sentence (from "Grindcore"): Grindcore is characterized by a noise-filled sound that uses heavily distorted, down-tuned guitars, grinding overdriven bass, high speed tempo, blast beats, and vocals which consist of growls and high-pitched shrieks.
Relevant evidence: No