As was said in another thread, it seems crazy is getting more and more and more frequent. Combination of causes... drugs, stupid, no consequences for lesser crimes, hatred.
One thing for certain: every wack like this should be put down like a rabid dog. No second chances. No easy prison time. No media feeding. And I think most cops are starting to think this way. It used to be cops wanted to get nutjobs alive, get a chance to interview them & 'learn' why they did it. Not that I want cops to be judge/jury, but sometimes a jury really isn't necessary to figure guilt... like when a nutjob kills one officer & wounds 4 others.