Instead of being remembered for good detective work, Mark believes his legacy will be focused on his disparaging role in the most memorable trial of his lifetime. "'The disgraced detective from the O.J. Simpson case died today,'" Mark quotes. "That will be the lead sentence [in my obituary]."
"And what would you want your legacy to be?" Oprah asks.
"Nothing," Mark says. "Nothing."
Watch Mark reveal his biggest regret about his involvement in this case.