This is the first that I've heard of this story, so I don't know all of the details. I am, however, sceptical of mainstream media and their inablility to tell all of a story.

Having not been there, I can only speculate that perhaps the croc was shot because it was a possible threat to the children that saw it. Think about it, if any of those children had been hurt, the animal control people would have had hell to pay.

Or I'm totally wrong, and the person that shot it is a total psycho.

I just don't know.