People don't wake up and kill.Its a process.
I pity those children,they must have undergone a lot of emotional torture while their parents fought and exchanged nasty words.people pretend to be together in public.
Sometimes when the woman is financial well off,she mostly has no respect for the husband.She fucks around with work colleagues and goes out drinking with girlfriends.Infact she threatens the husband with divorce,that means emotional turmoil,financial wreckage and child support cases.
Divorce favours women,they receive child support indirectly,get custody of matrimonial home and if their bodies are still in good shape,they get funding from multiple sex partners or get a very rich man.
I think the best example is wambui collymore .she dumped her husband for collymore.
The end result of all this is normally killings.