LAS VEGAS — A broken O.J. Simpson has been sentenced to at least 15 years in prison for a Las Vegas hotel armed robbery by a judge who rejected his apology and said, “It was much more than stupidity.”Simpson stood stone-faced Friday when Judge Jackie Glass quickly rattled off his punishment after he pleaded with her that he didn’t mean to steal from anybody when he tried to retrieve memorabilia. He appeared ready to break down in tears as he told that he was “sorry and confused” before going into a rambling and emotional 5-minute declaration. “I didn’t want to steal anything from anyone … I’m sorry, sorry,” he said. Glass ruled before sentencing that Simpson cannot be freed on bail pending possible appeal.