How to make advanced kill

Hello guys. Please give me an answer for this.

I want to make a stealth kill for my third person game. I got an easy way to do this by when we overlapped collision behind the enemy AI we can play anim montage by pressing key.then our player killing animation play after by using anim notify we can play Enemy get the damage for players kill animation.(these two animations are combined for stealth kill)

but how we play this two animations at corrected position.because the two animations are playing as one animation.

sorry for my bad english.