- Associated Press - Thursday, June 19, 2014

NEW CITY, N.Y. (AP) - A third woman has admitted her part in the killing of a New York activist, leaving only the victim’s daughter-in-law from Florida fighting murder charges.

The Rockland County district attorney says Andrea Benson of Washington, D.C., pleaded guilty Thursday to second-degree murder and will be sentenced to 20 years in prison. She’d been charged with first-degree murder.

The victim was Peggy Nadell, who was found dead in her Valley Cottage home on Jan. 25.

Her daughter-in-law, Diana Nadell of Cutler Bay, is accused of first-degree murder. She has pleaded not guilty. Prosecutors say she hired Benson to help her kill her mother-in-law so she could receive an inheritance.

Her husband, the victim’s son, is not charged.

Two other women have pleaded guilty to lesser charges in connection with false alibis.