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.
Kou Voravong
According to the police investigations, one of bullets fired by Oudom Louksourine reached Kou Voravong and caused his death. Oudom was a dangerous and notorious gangster, who confessed to have committed about fifteen assassinations. Imprisoned since 1950, he escaped in 1954 and with Mi -his partner in crime- joined a band of bandits established in Isan region, northeast Thailand, whose leader named Bounkong (ບຸນກອງ), a veteran Lao Issara and faithful follower of Chao Phetsarath.