Washington Post article highly detailed by David Maraniss

There is incredible detail in this Washington Post article by David Maraniss... too much detail... how would he have acquired info like this...

"Violand thought he heard the gunman reload three times. He could not hold back odd thoughts: “I wonder what a gun wound feels like. I hope it doesn’t hurt. I wonder if I’ll die slow or fast.” He made eye contact with a girl, also still alive. They stared at each other until the gunman left." [+]

Of course, he would have had to have interviewed Violand-- but he seems to have interviewed everyone. It's almost as if the way this story is written-- it's TOO good...