Max tells Kendra that he saw a man snap another survivor's neck. Kendra then asks the Medical Examiner to re-examine the victims for signs of strangulation. But they should be looking for spinal cord injuries / internal decapitation instead. To be fair, Kendra is not a medical specialist. The M.E. could have said something but he may not want to expend the effort to try to correct yet another lay person's misconception.