Anthony Marshall (L), the son of the late New York philanthropist Brooke Astor, arrives at court for his sentencing hearing following his conviction of stealing nearly $200 million from his mother's fortune on December 21, 2009 in New York City. The 85-year-old Marshall potentially could spend at least a year in prison and possibly more. Marshall, a former ambassador and in poor health, was convicted in October of taking advantage of his mother's deteriorating mental state to steal from her fortune.