Just an uneducated theory of mine... McCoy had a friend amoung his thug friends that heard his conversations about the value of the goods she had. Thought, "huh, Im into ripping people off. Im going to get me sum because she is over seas". He enters the house but she is home. Since she is there he told her "give me what ya got". She said, "I got nuttin". He said,"Oh yeah, how bout dat neckace and ring and bracelet". Then he beat the tar out of her for not given it up.