Mother, 3 Children Found Dead in Home

A mother, separated from her husband, was found dead along with her 3 small children. All were hung in a closet in their mobile home. An 8 month old has survived and is in good condition at a nearby hospital.

I am sure by now you have heard or seen this story. What a tragedy. Murder-suicide is suspected but the investigation is ongoing. How do people bring themselves to do things like this?

This is nothing new to Texas apparently. There have been 3-4 other cases like this where the children are killed by the mother in the last 5 years. All of the woman were found innocent by reason of insanity. I just don't get that.