It's simple just contact his hosting company and tell them they are in violation for hosting copyrighted material. Include original links of the material name of the file and date time it was taken and then include your page and his page as a reference. Most ISP's will take the initiative and shut down his entire page and or just cancel his account because he is violating his terms of agreement by publishing copyrighted to his page. It may be a good idea to include his full e-mail as well. I used to run the security dept for a HUGE ISP and I would personally terminate several accounts a day for violating the TOA and every ISP has one.
Then return the favor by leaving negative reviews anywhere you can like yelp, google, etc etc.