This is an interesting topic, and one I have given consideration to for some time.
Go back in your mind and evoke as vividly as possible memories of persons you feel like you wanted to kill for one reason or another. Take all of the qualities of whomever you wanted to kill and use them to compose an imaginary enemy possessing all of those qualities. On top of that imagine everything that could possibly make you want to kill another person; imagine that he raped your wife, mother, grandmother, or sister, burned your house down, killed your dog, molested your child, stole your stuff and broke your favorite toys. NOW focus all that rage on one person. There are different ways to handle that kind of rage. Serial Killers are motivated by rage. Profilers divide them into 2 rudimentary categories; a. organized and b. disorganized. Disorganized killers just blow up and make a huge mess, they are basically hot-headed. Most homicides commited by someone close to the victim exhibit signs consistent with disorganized murder performed in an emotional explosion, the victim being stabbed 100 times in the face or something excessive like that. It is important to think like an organized killer. You have training, you know where and how to strike, cut, or shoot. Your rage must be a cold-calculated rage, directed at an enemy that has been psychologically dehumanized by you into a target for your justified acts of aggression.
The process of psychologically dehumanizing people in your mind can be dangerous. This is a process people use in war. They see the enemy as the enemy dogs japs gooks whatever. For the average citizen or cop the enemy is scumbags crackheads skels, etc. you have to file the person into a non-human category in your mind so that you can act without mercy or hesitation. Most criminals dehumanize their victims in their mind.
For training purposes it helps tremendously to use human shaped dummies, like the spar-pro, BOB, or MASS Dummy; so that you accustom yourself to ATTACKING a human. This is aside from, and in addition to technically targeting human anatomical points (throat, eyes, balls, etc.) of the dummy. You are acclimating yourself to attack a human. Learn to feel that KILLING motivation and focus it with as much speed power and precision as you can muster. Condition yourself to attacking the dummy with TOTAL KILLING INTENT.
Always assume your assailant is trained, in condition, armed, hopped up on drugs, and has backup. Act accordingly: if you cannot escape; DESTROY THEM.
