It’s the major reason Kurt Russell’s wife doesn’t want him working on the film (where he ends up fighting Bruce Lee), though there are others. But I didn’t see it in the theater, so I’m not sure what I saw was only extended edition stuff. But the version I saw, somebody talks about rumors that he killed his wife, and that her death wasn’t really an accident. etc.; then a bit later there’s a flashback to him on a boat with his wife, and they’re both drunk, and she’s verbally tearing him apart. He’s sitting in a lounge chair with a beer in his hand, and she just won’t shut up. Then he looks at a speargun off to his side.

Then they cut away with the implication that whatever happened to her, she earned it.