In January 2003, a federal grand jury indicted Arlo Looking Cloud and John Graham in the murder of Aquash. Since 2004, they have been convicted by federal and state juries; each is serving a life sentence. Witnesses at the 2004 trial of Arlo Looking Cloud included Darlene Ka-Mook Nichols, Banks' former wife, who testified that she believed Aquash had been ordered killed by AIM leaders who feared she might be an FBI informant. Aquash and Nichols had heard Leonard Peltier brag in 1975 about having seen two FBI agents shot to death earlier that year at Pine Ridge. Peltier was convicted of murdering the agents in 1977, and sentenced to two life terms. He remains imprisoned.