 Clark, a three-year-old Aussie doodle, was dropped off at the Potomac Yard PetSmart June 27th by his owner, Andrew Knowles. He says two days later, a local veterinarian called to tell him a female PetSmart employee had dropped off Clark dead at his office. Knowles tells NBC4 the vet noticed a few things. He showed up and his mouth was full of blood and he repeatedly asked her what happened and she honestly had no answers and then just kind of left.