72 Evidence: All facts that can prove the facts of the case. Based on the above definition, which of the following is not evidence? ['A stole at a store at night, stealing 2,000 yuan, two fur coats, and stabbed the shop watchman with a dagger that he brought with him. After being captured, the public security officer found a dagger that killed the watchman from his home. And two stolen fur coats.', 'When A killed the officer on duty, someone happened to pass by. The public security officer found the passerby. The passerby described the killing behaviour he saw.', "When the public security officer investigated A's neighbor, A's neighbor said that A usually has the habit of thief and petty, and is arbitrary and domineering, often scolding pedestrians, and said that on the night of the incident, he did not see A near his home.", "A police officer found a letter from A's friend. In the letter, A said that he had stolen a fur coat and killed the officer on duty. He also said that he was scared."]