Sorry for the hold up.
"Alright so from what I read, the Killing Intent jutsu has the ability of the user giving off their extreme want to kill somebody, this can affect their opponent and others around them up to the point where they cannot move anymore, im guessing this is due to fear.It can work so well, the victim begings to hallucinate about their own death. Now although I said hallucinate earlier this jutsu is not to be confused with a Genjutsu, because I'm not inserting any chakra in my opponents brain, this jutsu is simply a showcase of intention and power to basically intimidate your opponent so much they scare themselves to the point where they become paralyzed or nauseous. Usually once activated, target will feel as if facing a very powerful enemy and will suddenly feel the pressure of the users chakra and its magnitude, making the effect that much more dramatic. To do this technique you need to concentrate on your opponent(s) and basically think about how badly you want to kill them, so its pretty simple to do, and as a bonus there are no need for handseals, but you do need to be able to see your target in order to activate this tech. The strength of the Killing Intent is dependent on many factors and go through several levels. If a difference in rank smaller than 2 ranks exist, the enemy will feel only the pressure and the ominous presence of their dark intentions. Its enough to lose your grasp on a weapon or stay clinched to it (depending on the situation) or even to hesitate in an attack, stumble or mess up a handseal, all depending on the situation and proximity. The effect is small and normally not that significant but can be effectively used to pressure enemies into making a mistake. If a difference of 2 ranks or more exist, the enemy will be frozen, almost unable to move as the overwhelming killing intent dominates their own conscious and riddles them with nightmarish versions of death. The paralyzation gradually weakens as time passes
and can only be maintained while the user is focused on the target. Sorry I read that directly from the scroll it just really explains it well and there's no other way I could've said it. The technique can be done from short to long range but the power level is different depending on how far you are from your target, the further you are the weaker the affect of the jutsu, also in addition, the more targets one focuses on, the weaker the effect is in each one (divinding the effects equally between the number of targets). Lastly, the stronger the user is in relation to the target, the stronger the effect will be. The target can counter Killing Intent directed at it through pain, "mind cleansing" techniques or their own Killing Intent. The technique has no specific rank because it depends on how strong the user is and how weak the opponent is. I had a question but it seems I may have forgotten it, I'll ask you if it ever comes back to me."