Most of that came when the Goldmans discovered in 2006 that O.J. Simpson had received a sizeable advance for a book called, "If I Did It." At first, they tried to have the book quashed, but when the rights to it were to be auctioned off in bankruptcy court, Kim Goldman said they purchased those rights to avoid Simpson somehow secretly profiting. She said the court ordered her family to publish the book.
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"People were very angry at us for publishing that book, because they didn't understand how we ended up with it," she said. As for criticism that her family is "in it for the money," she paused before replying. "I understand from a logical point of view that people think that all my dad and I are out to do is to capitalize on Ron's murder. However, we followed the law. The criminal system failed us, so we went after him civilly...it's punishment, it's retribution, it's what our system afforded to our family."
Petrocelli agrees. "The Goldmans want to obtain Simpson's assets because they don't want him to live a good life. He killed their son. He murdered their son."
The family finds some consolation in knowing that Simpson is now serving time in prison for robbery and kidnapping in a Las Vegas hotel room in 2007. O.J. Simpson said he went to that room to reclaim stolen belongings. However, the belongings he hoped to retrieve, including the suit he wore when he was found not guilty, are exactly the type of assets that could have been sold, with proceeds going toward his judgment.
Kim Goldman believes it was Simpson's own efforts to hide assets that ultimately led to his incarceration. "Irony is amazing," she said.
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As for O.J. Simpson's current net worth, his lawyer, Patricia Palm, told CNBC she did not know how much money he has. When asked if he is able to pay her, she would not comment, citing attorney-client privilege. Simpson's home in Florida went into foreclosure, though he is still presumably getting his NFL pension.
He could be paroled in three years, and it's possible Simpson would try again to make a living. "We'll be there waiting and watching," said Kim Goldman. "I'm not letting up. If I did, then I'm telling him it's okay for what he did."
—By CNBC's Jane Wells