"As you stood over his casket," Oprah asks, "Were you able to make peace?"
Lisa Marie pauses. "No, I don't think I could make peace then," she says. "It was more like I wanted to apologize for not being around."
Lisa Marie admits it's naïve to think that she could have saved her ex-husband from his fate, but she wanted to more than anything. To this day, she wonders whether her efforts could have made a difference. "Had I just said, 'How are you?' Can I try to make a phone call? I really did regret that I didn't," she says.