Ignatius snorted, just about able to keep the smile off of his face. "That's entirely possible," he said before looking at some of the stains on the carpet. There were blood stains, urine stains and... Unidentified stains. Ignatius was fairly sure that those stains were semen but he didn't want to think about what that meant. Sick bastards. "We need to take these stains to be analysed so label them with numbers. Cut the carpet into a square around it and put it in one of these," he said, taking out clear plastic bags which could be sealed and demonstrating what he meant with a urine stain.
"I think you're right. This is too methodical with the father's throat missing and then the wand hand of the mother missing," Ignatius replied. "I doubt you'll find every illegal source of Wolfsbane. However the apothecaries are a good place to start. We need to see if they have any family. If the girl manages to get away, she will hopefully head to a familiar place."