He'll have to get in line. [http://secamlocal.ex.ac.uk/people/staff/mrwatkin/zeta/RHproo...]
If you peruse the Number Theory papers on the arXiv, you'll see that there is a purported proof of the Riemann hypothesis every few weeks. So far, none of them have been vetted by a professional journal. I'd be very surprised (but happy) if this turned out to contain a correct proof.
A more interesting question would be "Why is this particular proof by this otherwise unknown author getting so much attention?"