The Golden Girls, Season 7

Dorothy:
[explaining Kendall's murder] When Posey saw Blanche give Kendall an extra key to her room, she was furious. She slipped out of the dining room and went upstairs when she felt she wouldn't be missed. Later, there was a knock on Blanche's door. Kendall answered. Posey was there. She accused of two-timing, he denied it. Posey takes out a knife and stabs Kendall. Then she left before anyone knew she was there. Jealousy was the motive, alright. But it was not Blanche who comitted the crime. [points to Posey] There's your murderer. Posey McGlinn.

Detective:
Well Ms. McGlinn, do you have anything to say?

Posey:
Dorothy Zbornak, you've stuck your nose in for the last time! [attempts to shoot Dorothy; detective pulls gun away]