Not at all.
Someone who really wants to kill would not tip the mark.
Not one in a thousand men can kill in cold blood. It is a very rare gift. Included in that number are all cops and soldiers. Their track record operating without state approval is very poor.
Anyone can buy a gun and pull the trigger. To risk one’s freedom or one’s life, without a reward on the backside, is very difficult. Almost no living person can do it. Getting away with it is the hard part. Most who even try will end up in prison.
I was inspired to write this article by the Rooshi’s ROK article. He’s good but lacks insight.