There are other examples too
mizruth posted:
Lest the poster think that only black children from the inner city or Africa are prone to be sociopaths, I recommend reading up on the case of Eric M. Smith who, at the age of 13, murdered a four-year-old playmate and committed with some pretty unspeakable acts to the body after the fact.

This child is from the suburbs of upstate New York with apparently normal upbringing. Some of the reports went into some of his unusual physical characteristics as well as some environmental factors that may have contributed to his mindset.

Here are some link: