1945 Katsuyama killing incident
On 14 July 1945, three African-American United States Marines were killed by the residents of Katsuyama, Okinawa, Japan. The villagers reportedly killed the three Marines after identifying them as the same Marines who had committed a series of rapes against village women following the Battle of Okinawa and hid their bodies in a nearby cave out of fear for retaliation.
Source: Wikipedia — 1945 Katsuyama killing incident (CC BY-SA 4.0)