It sounds odd that he said he could be claimed as a dependent but somehow claimed and got an education credit. Dependents cannot get education credits. If you e-file and your return is rejected, that will be a sure sign that he actually claimed his own exemption (even if by accident).
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
