“There are some who are born evil. Ive met them and seen
an emptiness in their souls that puts a fear into me for I
realized that the only way to combat them is to eliminate them
which would make me as evil as they are.”
My answer would be that Mosaic (and by extension, Christian and English Common Law) to the above would be that the Commandment said “Do not murder”. It specifically did not say “Do not kill”.
The Texan “Some folks just need killing” is correct and justifiable depending on the situation.
YMMV.
Now that's just silly.
The lover and the rapist are NOT equivalent. Failure to recognize that fact evinces profound lack of judgement.
"Never again will you be capable of ordinary human feeling. Everything will be dead inside you. Never again will you be capable of love, or friendship, or joy of living, or laughter, or curiosity, or courage, or integrity. You will be hollow. We shall squeeze you empty and then we shall fill you with ourselves."
George Orwell -- 1984
The abyss beckons.