In the Ko Hung murder, a plastic bag was found located near Ko Hung's body. Inside the bag contained butcher's knives, rectangular knives, women's leather shoes and men's underwear. The butcher's knife was originally connected to a pig butcher who owned Ko Hung gambling debts. When Ko Hung went missing, he admitted himself to a hospital for stab wounds. He abruptly left before his wounds were healed, and by the time the Zhunan police were close to arresting the man, it was announced that Chiou was the one who committed the murder, and no further action was taken. The rest of the contents in the bag, including the butcher's knife, were confiscated by the police and did not appear during the trial.
