Derfuss posted on Facebook that he checked the books out of the library just a few minutes before the shooting.
Earlier tonight there was a shooting at FSU, right as I was leaving Strozier. I didn't know this at the time, but the Shooter targeted me first. The shot I heard behind me I did not feel, nor did it hit me at all. He was about 5 feet from me, but he hit my books. Books one minute earlier I had checked out of the library, books that should not have stopped the bullet. But they did. I learned this about 3 hours after it happened, I never thought to check my bag. I assumed I wasn't a target, I assumed I was fine. The truth is I was almost killed tonight and God intervened. I know conceptually He can do all things, but to physically witness the impossible and to be surrounded by such grace is indescribable. To God be the glory, forever and ever, Amen.