Covertly we are dealing with evil, revenge, and passion. As soon as we get caught in the confused web of revenge masked as justice, as soon as we re blinded by our own evil intentions, good people get lost. Revenge evolved into justice because individuals needed to give over personal retribution for the good of society. The desire for revenge probably exists for all of us in the most primordial parts of our brain, as do other feelings that we chose not to act upon. We chose not to act upon them because as humans we are the only species that can foresee the consequences of our actions.
Premeditated execution is premeditated murder.
An avenger acts to preserve his kin group. Primitive men and women have always acted this way. As we became less overtly animalistic, we saw ourselves as better than beasts. If we use justice as our excuse for retaliation and revenge, we hide behind our own evil and become less than the animals we claim not to be. Mourning is a natural process that goes through a series of stages in order to reach closure.