You can move on with your life, they can't.
Please indulge me, here.
I once was in a situation where I was dealing with a person that I found out later was being "watched". Although my situation was relatively minor compared to this, I came out of the experience pretty darn mad. I danced real quick and made it through ok by pushing "forward and up" and praying alot but still I was darn mad at the higher ups who allowed this the situation to transpire.
For this businessman, it might have been "the straw". It surely is tough out there in the business world but one has to feel like there are certain things one can trust. With slim profit margins, being dragged through a tragedy of that magnitude would really take a toll.
So I say to Cindy: 3000 people were killed and it don't stop there. Its called terrorism for a reason.