Board Thread:False Info and Speculative Discussion/@comment-25123326-20160203070444/@comment-26879545-20160205172517

We don't know what that mask is, what its purpose is, or what it was doing to Nurse Cross.

It looks like a Dread Doctor mask, so, and this is speculation, it could be that he's trying to figure out how the Dread Doctors came to be. We know, according to Valack, that the Dread Doctors were scientists who worshiped the supernatural and found their secrets in electromagnetic forces. Apparently, they were able to prolong their lifespan, so we don't actually know how old they are.

Maybe his endgame is to become one of them. Maybe he's trying to find a way to stop them once and for all, or maybe he just wants their sweet power of making people forget about them for himself. Perhaps he thinks that there's only room in Beacon Hills for one Mad Scientist and it's not the Dread Doctors. However,   I honestly don't think he created them, since he would know how to stop them and he wouldn't need that mask for whatever he's using it for if he did.