Shirō Ishii

Shirō Ishii was the director of Unit 731, a camp focused on biological warfare under Imperial Japan. He lead the development of a biological superweapon capable of wiping out Japan's enemies.

Under his orders, Chinese civilians were kidnapped from nearby villages and tested upon within the facility. They would be injected with diseases and vivisected. Most prisoners brought into the facility usually lasted from 4-6 weeks.

He also genetically altered lethal diseases such as the bubonic plague and anthrax, and dropped them into Chinese villages. The result would usually lead to widespread infection and death. In one case, his troops would give children anthrax-ridden candy and observe as they died in their parent's arms.

Ishii was arrested after WWII and was granted immunity from prosecution. In exchange, he handed America the information he gathered from his tests within Unit 731. He died of laryngeal cancer in 1959.