Vicki Weaver died in the doorway of an Idaho cabin. Lon Horiuchi, an FBI HRT team member, launched the bullet that killed her. Horiuchi's supervisors issued orders that can be called suspicious, at best. No one disputes these facts. The people of the United States understand and accept the law enforcement is a potentially dangerous occupation.
People understand that lethal force is sometimes necessary in defense of self or another life.
People also understand that when lethal force is used, there is the potential for accidental injury or death. When mistakes are made, by agents or their supervisors, then there is a lot of second guessing. When a questionable incident occurs, we have systems in place to deal with them. The key to this equality was a trial by a jury of one's peers. They would examine the facts, if not the law, and determine whether or not actions were reasonable, or at least lawful or unlawful, according to the standards of our society.