The man was a violent abuser. He would have murdered her for another reason, if not this. This is just the most convenient excuse he could come up with. I deal with survivors of domestic violence on a daily basis. I even co-facilitate a group for the perpetrators. This had virtually nothing to do with abortion. It had everything to do with the imposition of violence on this woman.
This woman was 8 months pregnant at the time of her murder.That is 5 months past the time when an elective abortion could be performed, and no doubt 6-7 months past the time when she told him she was pregnant. Obviously, the discussion regarding abortion was long in the past. So to say that was his reason for murdering her is absurd. If he were going to murder her because he was angry over her refusal, he would have done so several months prior.
No, this is, quite simply, a violent man who believed he had ownership of this woman and the child she carried. Because he felt that he was given that ownership, and because he felt the need to exert power over her, he murdered her. Period.
You do an extreme disservice to those who have survived violent relationships by attempting to minimize the actual reason this woman was murdered. You are giving her murderer a ready made excuse to justify his behavior. That is shameful.