We are at war. We shouldn't drop everything and turn all of our attention to a single death like this. Such behavior emboldens our enemy. They see us get exercised over a single casualty and think "Look at the Americans. See how they weep and wail over a single man? They have no stomach for a fight. We can strike them and they will be afraid to strike back." A single trooper's death, while the end of the world to his family, should be a non-news event to the rest of us.
"If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not your enemy, for every victory gained you will also suffer a defeat." -Sun Tzu
Knowing what the enemy thinks and feels is essential to winning a war. "I don't give a damn" bravado does not. I don't mean to sound like I'm picking on you, but you need to understand that our behavior helps to determine how the enemy will act. National mourning over a single soldier makes us look like a bunch of pantywaists. While we shouldn't seek death for our soldiers, deaths happen in war. Those who put all of life on hold for a single man cannot win a war, or so it looks to their enemies. This one death cannot consume our national attention. We will lose this war if we cannot cope with combat deaths.