A scene from “Unfinished Business”

Carol Selby: [after Jessica exposes her as the murderer] He was the most exciting thing that had ever happened to me. His creative energy, his excitement. I suppose I fell in love with him, and I thought he felt the same thing for me. And then the night of the party, I realized it was Eleanor he loved and always had.

Jessica Fletcher: And you suddenly developed a headache.

Carol Selby: I had made a fool of myself. And when that painting was made public, everyone would know. I had to destroy that painting. I waited until I thought everyone had left, and then I drove back. And while Irene was cleaning up, I went in through the kitchen. She was still clearing the table. And I found the butcher knife and slipped out to the studio. He was the finest thing that ever touched my life. And I killed him.