Oh no, not another husband/boyfriend last one to see her. What is up with men out there?!
This doesn't look good.
I'm not saying it necessarily applies to this particular case, but in an attempt to answer your question, check out the clip below from the 3:00 mark until the 5:00 mark. Dr. Lee Warren talks about how the economy is crashing, guys wives are leaving them, and it's causing mental institutions to be overwhelmed and some dudes are snapping. Perhaps the mental health problem epidemic resulting from the current state of the economy is a catalyst for a lot of these domestic violence type murders.
http://www.youtube.com/watch?v=rCNKqVmUQaY&feature=related