In his trial, Simpson's associates and one-time friends, four of whom pleaded guilty and testified against him, described a botched plot to confront memorabilia dealers Alfred Beardsley and Bruce Fromong inside their room at the Palace Station. Simpson and the others stormed the hotel room, held the dealers at gunpoint and made off with thousands of dollars of merchandise.
Simpson's lawyers had asked for the minimum sentence of six years, arguing that Simpson merely showed poor judgment and was trying to recover sports memorabilia that he believed was stolen from him.
In his exclusive interview with ABC News, Fred Goldman said through tears that if his late son is looking down, he is likely pleased with the Las Vegas case's conclusion.
"I think Ron would be proud that we drove O.J. into this jail," Fred Goldman said. "But he should not be looking down. He should be here."
ABC News' Jim Vojtech and Lisa Fletcher in Las Vegas contributed to this report.