[aimhigh]

This scenario, where a stage gun kills an actor, has been used in many TV crime shows. Hopefully a finger print is on the casing.

[Noumenon]

In with Columbo - “One more thing...”

[madison10]

Yes, I seem to remember one from “Murder She Wrote.”

[maro]

Yeah, I think I saw a Matlock episode like that.

[Forward the Light Brigade]

I saw this plot on Perry Mason TV show—The Case of the Final fade out. The writer did it in that show.