Knowing that it happens even with the best trained forces doesn’t make it any easier to live with when you are the one on the trigger.
“It is possible, in my mind, that I hit him,” said Steven Elliott”
There’s true guilt, and then false guilt. If he wasn’t reckless,but was doing the best he could in a firefight, then it was an accident. And I’m sure Tillman wouldn’t hold it against him.