Years ago I had a friend/work colleague who was a survivor of the Bataan Death March and subsequent prison in Japan. Unlike most, he talked freely about his experiences. I vividly remember many of the incidents and details he told me. Too many and too horrible to enumerate here. Suffice to say the treatment of captives was as brutal as it gets historically. I will say though that upon liberation he and many others killed all the guards they could corral with their bare hands or any weapon they could find. Liberating troops looked the other way.
One of the professors at the college where I teach was a survivor of the Bataan Death March and being a POW in Japan. He retired before I was hired but I had several conversations with him. Of course he’s no longer alive.