The worst interpretation you can give the phrase, is: “Who cares? A few more bodies scattered around doesn’t make any difference to me.”
And the best interpretation is: “Who cares? They’re dead. It happened long ago. They can’t be saved now. So, just forget it. Move on.”
There are four people who were at the consulate when the attack began, but they can't tell us what happened prior to the attack, because they are dead! On the other hand, there are about 28 LIVING people who COULD tell us what happened prior to the attack, but they can't tell us about it because they are being forced to remain silent!