Gina,

Please call animal control or the police or whoever handles such things in your area. Even though you have no direct evidence that these pups have been hurt, you have plenty of evidence that this guy has an aggressive dog--the one that hurt Crayola. Report that attack and tell them about the puppies and the dog fighting. That should be enough to get them in the door--at least to check things out.

Got a boxer/pitbull rescue in your area? Call them too. They may have contacts for dealing with dog fighting & rescuing those dogs that are trapped in it.

This guy sounds scary. Keep yourself safe too, Gina!