Sandra Boss

The script opens with Rockefellers kidnapping of his daughter, Reigh, in Boston in summer 2008, then jumps backward.

We see the start of his relationship with Sandra Boss (Sherry Stringfield) in New York in 1993, amid the fake art on his apartment walls and his tales to her about losing his parents when he was 17..

Source: http://www.boston.com/ae/tv/articles/2010/03/12/rockefeller_story_glasses_half_empty/