NEW YORK, NY October 08, 2009 —Anthony Marshall, the son of the late legendary socialite Brooke Astor, has been convicted of exploiting Astor's dementia, and helping himself to her nearly $200 million dollar fortune. He faces a sentence of between one to 25 years in prison. His attorney, Fred Hafetz, says he will appeal.

HAFETZ: I thought the people did not establish their case... I'm just stung by the verdict.

After 11 days of sometimes intense deliberations, the jury found Marshal guilty of 14 of the 16 counts against him. Marshall's co-defendant, estate lawyer Francis Morrissey Junior, was convicted of forging Astor's signature. The five-month trial made public details of Astor's decline.