Zhang San wasn't dead, but he couldn't move his limbs, and even his mouth was the same, only able to slightly move his teeth. This situation was better than being in a vegetative state, but for the victim, the pain that followed was far beyond that experienced by a vegetative person, because a vegetative person is asleep, while he is constantly conscious.
Now, apart from the killer's appearance, there weren't any other clues, not even the bicycle that someone said they saw before, which had vanished into thin air. The only thing known was that the bicycle was likely a Forever brand, because the witness happened to own one himself, so he knew.
Zhang San's father, Zhang Shi, was arrested simultaneously when he received news of his son's disability. The reason for his arrest was simple—serious commercial fraud, bribery, and hiring someone to commit murder.
In the end, Zhang Shi's outcome was simple: life imprisonment.
