"Poor woman being left for someone else when she had 3 littlies and another on the way!"
Have to say that's not the first thought I had when I read this terrible story. I felt the same way I feel when men do something terrible to ex partner and kids with that "if I can't have you no-one will" attitude.
In those cases I don't immediately think Poor bloke, he must've been driven mad by it all, I tend to think What a bastard.
Same here, she stabs him, murders her own kids, then tops herself. Brutal yes, but also What a bastard, rather than What a shame.