If you want to kill, why don't you buy a gun?? are you realy at that much risk?
Yes there are places in the human anatomy that can cause death.. one really obvious one would be the throat, one easy knock to the adams apple. ( you get the picture. There are ways to Influence peoples minds or nervus system without actual boderly contact. In my 18 years of tai chi I have seen things that is still don't feel are plauseable.. But I don't believe that anyone that has the wish to kill somone, has the inner strength to meditate, uterlize your own magnetic field or use chi effectivly.
I would like to know why you want to kill somone.
(I apoligise for my poor English or use of grammer.)