Sorry...use the correct defintion...sub-human....they still walk amongst us...
They kill for shoes..they kill for cars..they kill for spite...they kill to avoid responsiblity...they kill for pleasure...
They come in all shapes, sizes, colors, and sexual preferences...
They prey upon the weak....
A wise man/woman goes armed and vigilant...he/she is observant of his/her surroundings and those who surround him/her...
While many avoid eye contact with others...and armed person should seek it out....the eyes are the window to the soul...and they allways show intent...
A) Do you have documentation on this?
B) Have you ever met any criminals? They make eye contact, just like everyone else.
"Reading" body language (non-verbal cues) is a much better way to determining who the bad guys are, IMO.
Where did that come from, Jeff Cooper? I believe that it is "dead on".