Deep down inside aren't we all killers? I mean we are carnivorous animals, it's in our nature to murder?

Regardless of health status, gender, race... if you peel off all the layers a person acquired from religion, society, and upbringing, fixed in his subconscious, about how 'immoral' and 'evil' murder is, and how he/she will feel so bad when he/she does it, don''t you get a natural murderer?