No not personally. But one of my sister's close friend's mother was murdered by her husband. It was in our neighborhood.
Domestic violence, in general, is horrible. When I hear about it, I always feel like some form of homicide could be the end result. I can't imagine what it was like for the children.
I also met someone who had thoughts of killing her baby due to postpartum depression. She got help, thank goodness.
I wish I could say I have no idea why people murder. But if I look deep into the darker side of myself, it is just a small step to loose control, and submit to anger or unjustified fear, at that point...after you loose control, what happens?
Premeditation? Well again, I would like to say I have little idea how it works...but I do have a theory. I think, at base, it is a loss of seeing the other person as a person. Murderers rob their victims of their humanity, first, in their minds, then in real life. If the victims are not seen as living, feeling, thinking human beings, then the murder can be justified in their minds.