Marcia Clark Speaks Out on O.J.

Marcia Clark, the face of the prosecution against O.J. Simpson in the 1995 "trial of the century," calls the day he was acquitted in the murder of ex-wife Nicole Simpson and Ron Goldman "a miserable day."

But now, with O.J. being found guilty of armed robbery, kidnapping and 10 other counts last Friday, she says justice is finally being served.

"I was surprised by the verdict," Marcia admits in an interview with Entertainment Tonight. "Simpson has been getting away with it, so to speak, for a long time. By the time this case came around, it was just business as usual for him. He doesn't worry about what's going to happen to him."

While O.J. could face a lifetime in jail, Marcia doesn't think he'll be imprisoned for that long.

"I think it's fair to say that he'll do at least seven to eight years in state prison," she predicts.

Catch the rest of the interview airing on tonight on ET.