Even Perry Mason couldn’t get him off.
See 23 for what I think his defense is planning. It might work on a jury of non-shooters. And even among shooters, SA revolvers are a small fraction, and very mysterious.
Perry has already covered this one.
“An actor rigs a fake on-air shooting with the connivance of his friend, the show’s host, but the practical joke goes horribly wrong when the gun, which he’d loaded with blanks, turns out to contain a live round.”
https://www.imdb.com/title/tt0091750/