"I remember, when 9/11 went down, my reaction was, 'Well, I've had it with humanity,'" wrote the "King of Queens" and Ratatouille" star.
"But I was wrong," he added. "I don't know what's going to be revealed to be behind all of this mayhem. One human insect or a poisonous mass of broken sociopaths.
In it, Oswalt also noted that some people ran toward the explosions — not away from them — to try to help the injured.
His message concludes by saying, "