I first heard about it when I walked upon a group of friends and they looked at me and said, "well, at least we know he wasn't the one who did it." "Did what?" "You didn't hear?" and then they were worried that anarchists (as in one of us) had done that for no apparent reason until I gave them an annoyed look and told them that we were neither that well organized or suicidal. Mostly I remember the hysteria of that day. It was really annoying. People were talking about car bombs, and other stuff that never happened.