Like others here, I am inclined not to use the behavior of a single person as a way to discredit an entire group. I have to think any JW I have ever met or known would be completely disgusted by this.
On the other hand, some of these children were in there teens! Didn't ANYBODY notice all the bruises? The attitudes that would have to be in place to support this level of cruelty surely manifested themselves in other ways for all to see?
I have a question. If an elder became aware of physical abuse in a home, would it EVER lead to a call to the authorities?
CYP