I am a trial follower and "why not just leave" is always the question ...and there is always a secret the murderer wants to hide...Protecting one's"image" with the community, family, protecting the pocketbook, hiding the affair, etc seems to be important the reasons in these high profile cases...Murder is the highest % cause of death in pregnant women I have learned.
The stat is "murder accounts for 20% of pregnant women deaths." High but still 20%.
FYI
I read an article the other night by Enid Greene. She was the Republican congresswoman from Utah from 1994 to 1996. She married a con man unknowingly. Anyway, she said that Hacking lying about his schooling is just the tip of the iceberg. There's a whole hidden life under there somewhere.
She and her ex-husband have been divorced for 7 years now, but she says she's still discovering things about him. Personally, I think there's a lot more that's going to come out about Mark Hacking and his secrets.