Comment: Think of this situation: who bears responsibility for Lavoy Finecum being shot?  I am saying both the officers who shot him and LaVoy.   The officers for deciding to shoot and LaVoy for reaching for his pocket.   Here is another situation, you go to a biker bar and insult the meanest biker in the joint, do you bear responsibility for getting assaulted or worse? 
As far as the protestor is concerned, he chose to put himself in your "boxing ring", by creating a disturbance.  Now, should he have been attacked, no.  Again, I say he should not have been attacked.  However, if you are at a firing range and you step in front of a target, do not be surprised if you get shot.