Who beat OJ Simpson up in prison and what was their motive?

according to reports oj simpson was beaten up because the 63-year-old had reportedly been a "marked man" in prison "ever since white supremacists overheard him brag about his ual conquests of beautiful white women." Simpson's former business partner, Bruce Fromong, told the paper: "Unfortunately for O.J., a group of young skinhead punks were within earshot - and they were enraged."