People People People,
There is a much bigger issue here than what you are seeing. The parents should not be allowed to correct these children. Why do you think the kids killed the dog in the first place? The parents have already demonstrated gross negligence in helping their children to develop acceptable social behavior. These kids need to be removed from the home, put into counseling and see if they can be socialized properly.
Don
Gonna have to disagree here simply because there may have been outside influences we don't know about...perhaps kids at school dared 'em to do something like this and we know kids cave to peer pressures, or perhaps they saw something on TV that prompted this behavior...
True, it could be signs of worse to come, but having kids do something like this doesn't necessarily mean the parents are two-bit drug users that didn't raise their kids right. They may be and they may not be, who knows...
In the least, I hope Social Services takes a closer look at their home environment and things progress for the better after that...