What evidence points to mr. huffington as the murder?

Mrs. Stetson was the neighbor that found Mrs. Huffington in her pool. She was apparently stopping by with a gift of a bundt cake to celebrate the NewYear, despite the fact that Mrs. Stetson’s relationship with the Huffingtons in the past has not been a positive one. Mrs. Stetson belongs to the Church of Higher Being, a recently-developed religion with very strict moral rules for living. As a part of her beliefs, Mrs. Stetson was absolutely enraged upon hearing about Mrs. Huffington’s affair and even more enraged when she heard that the Huffingtons were going to violate the rites of marriage by getting a divorce. Mrs. Stetson often stopped by during the divorce proceedings to publicly yell at the two of them, calling them “useless, moronic human beings” and “idiotic non-believers”. She even went as far as to put up a sign in front of the Huffington’s home that said, “Sinners live here.” She threatened the couple often by phone and Mr. Huffington called the police twice to get her off their front porch. Mrs. Stetson also has a history of such anger, as she was even loosely connected to a plot to blow up the home of a popular politician the year before. She did not face criminal charges, but her erratic behavior caused the judge to require her have a full evaluation, where she was given strong medications to help her with her anger issues. At the interview, Mrs. Stetson mentioned that she had not taken these pills since October.