Let's start reasoning The killer of the sixth issue is Shen Teng. Because when the guests saw the detective fall, only Shen Teng and some intermediaries always stressed that they didn't see anyone fall. When we went downstairs to look outside, we didn't find Shen Teng around us, but at the same time we found that the body of the person who fell from the building had also moved. So let's start reasoning. The killer of the sixth issue is Shen Teng.