Searching for Angela Shelton

On Valentine's Day, Robert Chambers walked out of a prison in upstate New York as a free man, but one still pursued by his own infamy. In an exclusive interview with 48 Hours Investigates correspondent Troy Roberts, Chambers apologized for the way he lived his life and took Jennifer Levin's. "Every day, something reminds me of her, reminds me of her family," Chambers told Roberts. "And every day, I know that I'm in prison because somebody died, and I'm responsible for that. It's not an easy feeling. You don't get comfortable with it. And it's part of my life for the rest of my life." Rehearsed lines from a con artist? Or genuine repentance?