"What you have is this notion of one person being bitten by a shark in Australia and the news goes around the world and all of a sudden, you think shark bites are prevalent," he said.

Friday's shooting was almost instantly on television: images of horror repeated many times. That is why, perhaps, that some people worry more, Kassinove said.

And they become anxious.

"The only thing we can do is to sit down with our children and talk about it, especially with the little ones," Schreier said.

Talk about this new world we live in.

Declan Procaccini, whose daughter attends Sandy Hook Elementary, did just that.

"It was only a week ago we were talking about this type of situation and I said the chances of it happening are one in a zillion at Sandy Hook," he said. "I was wrong about that."

He said he has been doing his best to soothe his children.

"It's funny -- a bomb hit and there is a lot of smoke and it's still here," he said. "I haven't had enough time to really plan, but hopefully by the time they do go back to school, I will have done a good enough job of making them feel as comfortable (as I can)."

His children were already asking him when this might happen again. The game, he said, was changed from this moment on.