Guess what? As far as I know , a homicide of a 3rd party where a husband or wife is caught cheating, is not murder in Texas.
It is today (generally). But I know for a fact it wasn’t in 63. And functionally it was still coming out that way again in 81.
It used to be very dicey business to mess with another man’s wife in Texas, or even to insult her.
That’s a story
Often the sentiment was such that a jury wouldn’t convict but it’s not the law