The parent must recognize and seek help for the child, usually on recommendation of teachers and other professionals in the school system. This cannot be diagnosed by an untrained person.
One specialist is Dr. Robert Hare of Canada; he has developed a specialized type of therapy that will help child psychopaths (sociopaths) veer off the destructive path and have the best life the illness allows! Arguably, he is the ONLY one who knows how to train therapists to deal with sociopaths, and has a special type of therapy developed for children with this devastating mental illness. See his BOOK, "Without Conscience," available at online bookshops, and you'll be able to understand much more.
Here are three very different opinions from FAQ Farmers:
* Be careful that you are not confusing social anxiety with sociopathy. Social Anxiety is technically classified as a disorder, but think of it like a symptom. Don't try to get rid of the social anxiety. Find out what is causing it before you try to overcome it.
* "Sociopath" is a misleading word: it implies a disorder, something wrong and unnatural with the person, and this couldn't be further from the truth. We, the people you refer to as sociopaths, have nothing wrong with us. (That, while arguably true from a sociopath's perspective, does not mean one should not do something about the situation. "Sociopaths" can be quite damaging to those around them). Just as science understands that epilepsy is not demonic possession, that people with dissociative conditions are not harboring ghosts or devils in their bodies, and that depression is not a "deadly sin," it would and will be able to prove that sociopathy happens for a reason and that it can be dealt with. Sociopaths do very bad things. But branding them all "pure evil" isn't going to help anyone. It's just more hate.