A Las Vegas judge sentenced fallen gridiron great O.J. Simpson to at least 15 years in prison for leading an armed hotel room confrontation over sports memorabilia in 2007. A pre-sentencing report recommends an 18-year prison term for O.J. Simpson, 61. Simpson could become eligible for parole in about nine years. Grimacing, his head cast down, Simpson was escorted from the courtroom in shackles. Judge Jackie Glass gave Simpson a tongue-lashing before passing sentence. “Earlier in this case, at a bail hearing, I said to Mr. Simpson I didn’t know if he was arrogant, ignorant or both,” Glass said. “During the trial and through this proceeding I got the answer, and it was both.” She stressed that the sentence was not “payback for anything else,” apparently referring to Simpson’s acquittal 13 years ago in the slayings of his former wife, Nicole Brown Simpson, and her friend, Ron Goldman.