Police say a woman from Florida has been charged with killing her activist mother-in-law in Rockland County.
Three other women have also been arrested in the killing of 80-year-old Peggy Nadell of Valley Cottage.
Nadell's body was discovered by her daughter in her home on Jan. 25.
Police and the Rockland County district attorney would not comment Wednesday on a motive for the killing or the relationship among the defendants.
Nadell had been a county Democratic committeewoman and was outspoken on environmental and women's rights issues.
The daughter-in-law, Diana Nadell of Cutler Bay, Florida, was charged with murder and conspiracy, as was Andrea Benson of Washington, D.C. Tanisha Joyner of Washington and Elita Grant of East Long Beach, California, were charged with conspiracy. Prosecutors are seeking extradition for all four.
Nadell, a retired human resources executive, was a longtime Rockland County Democratic committeewoman. She lived alone since her husband died years ago, according to neighbors, and was outspoken on environmental and women's rights issues.
She also was active in the Valley Cottage Civic Association and served on the board of Keep Rockland Beautiful.