Board Thread:False Info and Speculative Discussion/@comment-5285305-20160108233121/@comment-11533671-20160111232024

The Dread Doctors creations were created from human chimeras. They weren't creating chimeras as much as they were making the two sets of DNA carry 2 different types of shapeshifters. They broke the supernatural rule of being two things at one time.

Furthermore, we know from the show that the ONLY survivor of the Hale fire was Peter. He was the only victim of the arson to survive.