I'm not confident that this is the correct answer, but it bears some similarities.
Time to Die by Murray Leinster.
It involves the ability to rewind time and there is a reference to someone murdering his wife and then rewinding time to prevent the murder.
Rodney, who describes himself as "the most competent physicist alive" is on death row for murder. A fellow prisoner, Limpy Gossett, tells him of a trick that he has seen that enables escape. Limpey tells him that another physicist (Fellenden) had escaped from death row by some form of time-travel. The trick involves slowing down time in your mind until everything seems to run backwards, then at a desired point, stop and avoid the action which caused your current predicament. In effect, you change "time tracks" and cease to exist in the first branch.
Rodney succeeds in performing this form of time-travel, but not everything turns out as he expected...
And a relevant excerpt:
Fellenden had vanished from a death cell in Joliet by traveling back
to the time before the killing of his wife. Then he had not killed
her. There had been at least two possible futures for him at that
point; in one of which he killed her, and in one of which he did not.
Rodney lived and moved in the future in which the murder had taken
place. In the other - which to Fellenden was now the actual future -
Fellenden had not committed a murder, and was doubtless a respected
citizen and a prominent physicist instead of an escaped murderer.
This is quite an old story (Astounding Science Fiction, January 1947) so, if not the correct one, may be an influence on it.