it had been stolen from dead Japanese soldiers. "One of the POWs had a ring on and the Japanese guard attempted to get the ring off," said one U.S. prisoner. "He couldn't get it off and he took a machete and cut the man's wrist off and when he did that, of course the man was bleeding profusely. [I tried to help him] but when I looked back I saw a Japanese guard sticking a bayonet through his stomach." Prisoners started out from Mariveles on April 10, and Bagac on April 11, converging in Pilar, Bataan, and heading north to the San Fernando railhead. At the beginning, there were rare instances of kindness by Japanese officers and those Japanese soldiers who spoke English, such as the sharing of food and cigarettes and permitting personal possessions to be kept. This, however, was quickly followed by unrelenting brutality, theft, and even knocking men's teeth out for gold fillings, as the common Japanese soldier had also suffered in the battle for Bataan and had nothing but disgust and hatred for his "captives" (Japan did not recognize these people as POWs). The first atrocity—attributed to Colonel Masanobu Tsuji—occurred when approximately 350 to 400 Filipino officers and NCOs under his supervision were summarily executed in the Pantingan River massacre after they had surrendered. Tsuji—acting against General Homma's wishes that the prisoners be transferred peacefully—had issued clandestine orders to Japanese officers to summarily execute all American "captives". Although some Japanese officers ignored the orders, others were receptive to the idea of murdering POWs. During the march, prisoners received little food or water, and many died. They were subjected to severe physical abuse, including beatings and torture. On the march, the "sun treatment" was a common form of torture. Prisoners were forced to sit in sweltering direct sunlight without helmets or other head coverings. Anyone who asked for water was shot dead. Some men were told to strip naked or sit within sight of fresh, cool water. Trucks drove over some of those who fell or succumbed to fatigue, and "cleanup crews" put to death those too weak to continue, though some trucks picked up some of those too fatigued to go on. Some marchers were randomly stabbed with bayonets or beaten. Once the surviving prisoners arrived in Balanga, the overcrowded conditions and poor hygiene caused dysentery and other diseases to spread rapidly. The Japanese did not