50 Cent has trolled Sean ‘Diddy’ Combs after a video emerged of the rapper beating his ex-girlfriend Cassie Ventura at a hotel in 2016. He was one of a string of celebrities who hit out at Combs, 54, in the hours after the footage was released by CNN. They included model Emily Ratajkowski, 32, who branded him a “monster” on social media. And singer Aubrey O’Day, 40, who has been one of the most vocal critics of Combs’ after they fell out in her girl band days, blasted on X: “The picture is getting a lot more clear for you all I can imagine.” Fifty, 48, whose real name is Curtis James Jackson I…