According to ABC News Rockefeller’s grandson Richard Rockefeller has been confirmed dead in a NY plane crash. The 65-year-old was a doctor and father of two, and well known philanthropist was heading to Portland, Maine, when the plane took a sudden plunge. Officials say his plane crashed into a New York City bedroom community of about 10,000 residents that houses a State University of New York campus right outside New York City at 8 a.m., Friday.