The celebrity chaser who revealed that Britney Spears tips the paparazzi where she's going to be has sued X-17, alleging that three of the agency's photographers beat him up. Alison Silva says his fellow paps cornered him outside Spears' house on March 5 and told him he didn't belong there. From MTV.com:

Silva claims that one of the photographers punched him and knocked him to the ground, then the three kicked him to the point where he passed out. When he came to, he claims they were kicking him in the face. "I didn't know what was going on," he said.

Three witnesses called 911, and Silva was taken by ambulance to the emergency room with a police escort, according to the police report. One of the witnesses told police officers that he heard one of the attackers say, "Let's go f--- him up, there are 10 of us here," saw one of the attackers go get a metal tube from his car for that purpose, and heard another attacker say, "Don't kill him! Don't kill him!", according to the report.

At Providence Holy Cross Medical Center in Mission Hills, California, Silva was treated for blunt head trauma and a broken nose, according to the medical report. Silva said his injuries temporarily rendered him unable to drive or operate a camera.