there is no specificity, he didn't say "don't kill people you don't like" he didn't say "don't kill people" it says "thou shalt not kill"
everything you eat was once alive and is now dead whether by your own hand or the hand of another
if you refuse to eat you would die and in essence have killed yourself
it's always bothered me
There are a number of situations where killing is not only permissible, but actually morally good, and these include capital punishment for capital crimes and killing your enemies in a just war. Only Liberal Jewmanism, disguising itself as Christianity, would suggest otherwise.