On the morning of December 29, the U.S. Cavalry troops went into the camp to disarm the Lakota. One version of events claims that during the process of disarming the Lakota, a deaf tribesman named Black Coyote was reluctant to give up his rifle, claiming he had paid a lot for it. Simultaneously, an old man was performing a ritual called the Ghost Dance. Black Coyote's rifle went off at that point; the U.S. Army began shooting at the Native Americans. The Lakota warriors fought back, but many had already been stripped of their guns and disarmed.