Past a brief early mention, the yearbook forgery has disappeared down the memory hole.
The yearbook was so obviously fake from the beginning, by having the date written twice, and the numbers “1977” being written differently. The pic you posted of the different colored ink leaves no doubt either. Then you have the part about what “D.A.” actually stood for. No wonder the media dropped any coverage, but it needs to be repeated over and over for those who may not know.