According to Han Zirui, based on the autopsy report, the deceased had struggled with someone before death and was strangled to death, then thrown directly from the second-floor railing.
After the incident, the deceased's body clearly underwent handling, and the suspect carefully cleaned the crime scene and the corpse.
Yet even so, the forensic doctor still extracted some skin flakes and hair from the deceased's body.
After DNA comparison, these hairs and skin flakes turned out to be Qiao Dehou's!
Moreover, the strangulation marks on the deceased's neck coincidentally had a rectangular bulge that exactly matched the shape of the jade ring on Qiao Dehou's thumb.
Shen Tingting's father, Shen Ling, confirmed that he saw Qiao Dehou strangle the deceased and then throw him downstairs.
Furthermore, the deceased's family had business dealings with Qiao Dehou, involving a huge profit, seemingly at the point of conflict, giving Qiao Dehou a motive to kill.
