Roof, 22, faces 33 federal charges in the massacre at the Emanuel African Methodist Episcopal Church.
Dylann Roof, the man accused of killing nine black worshippers when he allegedly sprayed a South Carolina church with bullets last year, has been ruled competent by a judge to stand trial.
With the ruling handed down Friday, jury selection in the murder trial is set to begin Monday.
Read: Accused Church Shooter Dylann Roof Attacked by Fellow Inmate in South Carolina Jail
Roof, 22, faces 33 federal charges in the massacre at the Emanuel African Methodist Episcopal Church, which occurred during a Bible study group meeting. He faces the death penalty.
On June 17, Roof walked into the church and sat in the Bible study session for nearly an hour before drawing a semi-automatic handgun.
Friends said he was obsessed with the riots in Ferguson, Missouri, and the Trayvon Martin case, and was said to be in favor of segregation.
Read: Dylann Roof Charged With Killing 9; Friends Say He Wanted To 'Start a Race War'
Roof reportedly spewed insults at his victims while shooting, and left three people alive to tell others his motive was that he hated black people.
Killed in the shooting were Rev. Clementa Pinckney, Rev. Daniel Simmons Sr. , Rev. Sharonda Singleton, Rev. DePayne Middleton-Doctor, Cynthia Hurd, Ethel Lance, Susie Jackson, Myra Thompson and Tywanza Sanders.