The tribunal has received heavy criticism over political interference related to cases 003 and 004.
Witnesses said the suspect stepped out of his car, pulled out a hand gun and opened fire on a crowd of over 1,000 protesters.
Cambodia and Thailand had deadly armed clashes in the past due to ownership claims over a piece of land near Preah Vihear temple.
Authorities said the bus was struck by a punctured tyre, shortly after crossing Tatai bridge in Koh Kong province.
Villagers complained that the new location lacks enough clean water, electricity, roads, schools and access to health care.
Prime Minister Hun Sen declared Tuesday the elimination of commercial fishing lots in the Tonle Sap Lake and put it under preservation.
Health officials said circulation of illegal medicines has dropped from 0.5 percent in 2010 to 0.18 percent in 2011.
At least 50 people, whose houses were bulldozed early January, said their names are not in the new housing list.
Lt. Gen. Chhoeun Chanthan was found guilty for breach of confidence, distribution and selling of weapons and mismanagement.
Donors are meeting in New York on Friday to review the budget proposal.
Taing Tek Hong says while the rate of cure of hepatitis B is low, treating it is crucial to prevent cirrhosis and liver cancer.
Congresswoman Tsongas met with government officials, civil society groups, business community, and opposition parties.