I was in college that day; in Orlando (University of Central Florida).  I didn't see the actual explosion, but if I were outside at that time, I would have.  I walked out maybe 15 seconds after it happened.   I can remember looking at that trail, just like you see it in that video and the confusion going on in my mind about it.  The news around campus spread quickly though, and it wasn't but a few minutes later that everyone knew what had happened.<p>It was something I will never forget.  I wasn't alive when Kennedy was shot, but people say it was like that.