Who killed the dogs in the roman mysteries the thieves of ostia?

In "The Thieves of Ostia," the dogs were killed by a character named the "Curator," who is later revealed to be a villainous figure involved in the mystery. The act serves as a significant plot point that helps the young protagonists, Flavia, Jonathan, and Nubia, connect the dots in their investigation. This incident highlights the darker elements of the story and the lengths to which the antagonist will go to achieve his goals.