Simple solution would be to send a DMCA notice to the person, his host, his host's host, his payment processor, his domain registrar, and anyone else you can think of. List the infringing photos by name and URL and make sure you are clear about which images are infringing.
DMCA is here:
http://www.copyright.gov/legislation/dmca.pdf
A google search will provide you with several sample DMCA notices to use.