In October 2004, four arrests were made in connection with Mowhoush's death: Chief Warrant Officer Lewis E. Welshofer Jr., and Chief Warrant Officer Jeff L. Williams, who were the two soldiers conducting the interrogation, and Sergeant First Class William J. Sommer and Specialist Jerry L. Loper from the 3d Armored Cavalry Regiment, who were assigned to the detention facility at the time of the interrogation, and who also faced dereliction of duty charges.[citation needed]