"Ending another human's life" covers a wide range of cases. My recollection of this event, which is now long in the past, is that he was cold, calculating, did not value human life, and was quite comfortable with his kids moving on without their mother. He didn't just do something to her. He permanently damaged his kids, her family, and all of her friends. He made his decision knowing all of this.
Redemption? Possible I suppose, but don't make the mistake of looking at this from your perspective, because he's not like the rest of us.
Redemption? Possible I suppose, but don't make the mistake of looking at this from your perspective, because he's not like the rest of us.