Prominent anarchists, Sakae Ōsugi and Noe Itō, his wife and Sakae's 6-year-old nephew Munekazu Tachibana, were beaten to death by the Kenpeitai, under the command of Masahiko Amakasu. The bodies were then thrown into a well in what would become the Amakasu Incident.
The soldiers responsible were court-martialed, with their defense being impromptu national defense. The convicted defendants received relatively light sentences.
Oklahoma was clamping down on the KKK.