Burma's last pre-WWII Prime Minister, U Saw (who had himself lost an eye surviving an assassination attempt in late 1946), was arrested for the murders the same day. U Saw was subsequently tried and hanged for his responsibility in the assassination, but there have been many other claims of responsibility from multiple parties ever since Aung San's death. Some claimed that a rogue faction in the British intelligence service was responsible. In his autobiography one of the Thirty Comrades, General Kyaw Zaw, accused the British police department in Rangoon of knowing about U Saw's plot days in advance but doing nothing to prevent it. Other observers blamed discontented senior members of the Burmese Army, claiming it was inconceivable that U Saw, a man with no military experience, could have planned and carried out the attack alone. The Burmese Communist Party said that it was part of "an imperialist plot", claiming that Aung San had been in discussions with them to form a "united front" government, and that the assassination had been carried out to prevent this. U Saw never admitted any responsibility, and he claimed that the weapons found behind his house, which led to his conviction, were planted in order to frame him. U Saw's claim was believed by multiple other politicians who were not part of Aung San's party, the most senior of which was U Ba Pe, who stated to the press that they also expected to be framed for other crimes by their enemies in the new government. After Aung San died his old friend U Nu became the prime minister and stated publicly that he knew the British were not involved in the assassination. According to General Kyaw Zaw, this was evidence that U Nu was part of the conspiracy.