First, try to do a meta data search, contact the photographer. He/She may have signed exclusive use  for that image for a company. For example, if a lacrosse player wearing specific gear, shot for a specific business; or an image of food from a particular restaurant. These companies hired the photographer for images for their exclusive use.  Second, really, just hire a pro to capture what you want. It might cost you (or your friend) a whole lot less in the long run.