signature had become more ornate, more artistic. >> and 2 1/2 years before his death, rob added an extra element to his signature. >> it was in the bottom right-hand corner of his signature. i then began looking at signature after signature after signature. and that fish was there. >> this was a christian symbol. the ichthys. rob added it to his signature as a sign of his faith. but it wasn't on the change of beneficiary form. >> i know that symbol is very significant because he repeatedly used it in the more formalized signatures that he wrote, such as in business documents. and that symbol was not in the questioned document. >> and there was another discrepancy in the life insurance policy signature. >> rob andrew had a characteristic of connecting the