Gutless, cowardly parents who kill their own innocent flesh and blood to get back at a spouse deserve a special corner in hell.
Years ago I had a neighbor kill her two youngest children (infant and toddler) and then herself while her other four children were in the living room watching TV. I'll never forget the screams of those children and they came running across the street to my nextdoor neighbors house for help...
That is not revenge, it is an exercise of control combined with suicidal desperation. I'm surprised that given our me-centered society that it doesn't happen more often. It is tragic and horrible...that anyone could reach that point.