Ok...I think that some of the disconnect here is based on a lack of understanding of how the milling industry works. Nestle Purina has a number of pet product processing plants located throughout the country. These plants produce the majority of their pet foods (of all types). However, they also own, or have affiliations with, dozens of smaller mills throughout the country that produce products of all types...some for Purina, and some for other companies, or even (as in this case) individuals. To say that "Purina" produced the rat food in question, while it may be technically accurate, is not the same thing as saying that it was produced by the mill that manufactures LabDiet, and Mazuri rodent chow.
So...unless you can tell me that lord jackel had his rodent food produced in the PMI Nutrition International plant located in Richmond, Indiana (where both Mazuri rodent chow, and LabDiet are manufactured), then you can not draw a connection between what he fed his animals, and the products produced in that plant.