Chris Brown was branded a “violent man” by internet critics after he was slapped with a $50 million lawsuit accusing him of assaulting four concertgoers, RadarOnline.com can reveal. The latest allegation against Brown, 35, was filed by four individuals who claimed the rapper and his entourage attacked them backstage at his July 19 show in Fort Worth, Texas. Plaintiffs Larry Parker, Joseph Lewis, Charles Bush, and Da Marcus Powell filed the lawsuit against Brown in Harris County, Texas, on Monday. The lawsuit alleges the plaintiffs were attending Brown’s 11:11 Tour at Dickie’s Arena in Fort Wor…