A scene from “Unfinished Business”

Jessica Fletcher: [after exposing the murderer] You had to have seen Paul give Andrea the pearls. There's no other explanation. What you didn't see was Paul slipping the disk into the jewel case before he left to meet you. But when Andrea told you that Paul had given it to her just before he was killed, and when you saw the pearls and the open case here ... Well, you're a clever young lady, Miss Downing. Not to mention ambitious and ruthless.

Laura Downing: I learned it from Paul. Oh, yes, Paul taught me a lot. His problem was that he didn't know that I was smarter than he was. The information on that disk? I dug it out for him. Did he think I didn't know what he was going to use it for? Didn't know what it was worth?

Jessica Fletcher: So you decided to cash in on it, take over his game. You phoned him, said you had to talk with him.

Andrea Cromwell: But why did you frame my father?

Laura Downing: I didn't plan it that way. But Hagerty followed Paul. Paul had spotted Hagerty following him. It was Paul who hit him. It just flashed into my head. The perfect cover. Now, I had to kill Paul either way. I had the gun in my purse, but Hagerty's gun was just lying on the floor. It was even better.

Jessica Fletcher: Then you slipped out and phoned security, reporting the gunshot.

Laura Downing: It was almost a perfect plan.

Jessica Fletcher: Except for the fact that Paul wasn't carrying the disk.