The dogs and cat were pets, and initial inspection showed they had been poisoned. It is believed that the killer must have mixed poison in food and left it near the bin.
Locals told police that a man, with his face covered by a helmet, was seen riding a motorbike around in their community on Tuesday. Residents also said that they heard the sound of dogs howling for several hours and now believe that those were howls of pain.
Wang Khuntiam, 75, the owner of one of the dead dogs and the cat, said something similar had happened in his community last year.
“A robber tried to break into a house in the midst of festivities, and four or five dogs were found dead. However, since nothing was stolen, we decided not to file a police case,” he said.