Music executive Larry Jackson is suing to identify the anonymous person or people behind what he describes as a “coordinated, malicious, and ongoing campaign” targeting him, his independent label Gamma, and the label’s artists. He says the “reputational warfare” started after an article cast him as one of the masterminds of Kanye West ’s “risky comeback.” In the 12-page complaint, filed in New York and obtained by Rolling Stone , Jackson says that shortly after Bloomberg published its story on