Mr Zheng explained that he had been transporting the body parts for his brother, who had had them amputated after an electric incident.
Mr Zheng said that his brother had asked for his help in transporting the limbs back to him, so that when he dies, his body can be buried in one piece. Mr Zheng was released by the authorities after the hospital treating his brother verified the story.
Source: http://www.bbc.com/news/blogs-news-from-elsewhere-40863485