A police officer stands guard in front of the Phnom Penh Municipal Court during the trial of Chuop Somlap, who is accused of murdering the political commentator and prominent government critic Kem Ley, in Phnom Penh, Cambodia, March 1, 2017. A man accused of murdering prominent Cambodian government critic Kem Ley told a court on Wednesday that he killed him over money, in a shooting that drew suspicions of a political motive.