Today is the second day of closing arguments in the trial of Brooke Astor's son.
Summations began yesterday.
Anthony Marshall and his lawyer are charged with taking advantage of Astor, in an effort to gain control of the socialite's massive fortune.
Astor, who died in 2007, left most of her $198 million estate to Marshall in a will that was revised in 2002.
Prosecutors say Marshall got her to change it as her mental condition deteriorated.
Defense attorneys argue Astor was lucid when she signed the amendment to the document.