Kou Voravong
The attack occurred at approximately 22:15, at Phoui Sananikone's, an official residence nearby the Voravong family's. The attackers launched three grenades by one of the windows on the ground floor, in the dining room. They fired three or four pistol shots and then run away. Kou voravong, sitting with his back to the window, was directly hit by a bullet which came in by the kidney and out through the navel, after cutting the vena cava and crossed the liver and intestines. His dead is declared shortly after admission to hospital. A dozen people were injured by the explosion of the grenades, slightly for most of them.
Hou Jing
Meanwhile, while Emperor Wu was effectively under arrest, he still resisted Hou's will when it came to personnel decisions and other matters that Hou wanted him to issue edicts on. In response, Hou put Emperor Wu under even greater secure guard, and it was said that Emperor Wu's supplies dwindled. In summer 549, Emperor Wu died. (Some historians believe that Hou starved him to death.) Hou allowed Xiao Gang to take the throne (as Emperor Jianwen). Meanwhile, Xiao Zhengde, angry at Hou's betrayal of him, secretly communicated with Xiao Fan, but his letters were intercepted, and Hou put him to death.