A Thai gunman was sentenced to life in prison on Friday for the murder of a Cambodian opposition politician in Bangkok, a judge said. Cambodian opposition figures have accused the country's powerful former leader Hun Sen of ordering the shooting, and Lim Kimya's widow called this week for a full accounting of who was behind it. Advertisement AdvertisementAdvertisement Advertisement"The actions of the first defendant caused harm to the plaintiff," the Bangkok Criminal Court judge said on Friday. Thai police said in January that they were also seeking to arrest a Cambodian national believed to be behind the killing. The court on Friday dismissed the charges against a second defendant, Thai national Chakrit Buakhil, who was accused of driving Ekkalak to the Cambodian border after the shooting.