Don't take this the wrong way, but I thought I had heard once that the life insurance if a police officer is killed in the line of duty is like 5-10 million dollars?
I doubt it is that much, but if you are a LEO you should have a stout LI policy because there is always a chance you can get popped by whack job like above. It would be irresponsible not to. You didn't sign up to be florist after all. Sad and tragic situation, but if you deal with the scum of the earth daily as part of your job it can and does happen.