Dylann Roof's lawyer, Sarah Gannett, said the charges are "extremely grave" and "under the Constitution they are not properly charged."
Out of the 33 federal charges against Roof, the accusation that he violated the prayer group's right to freely practice religion will weigh heavy when considering the death penalty.
Dylann Roof has been charged with 33 federal hate crime and firearms charges for the shooting. The case is expected to go to trial July 11.
Police are continuing their investigation into the South Carolina shooting that left nine dead at the historic Emanuel African Methodist Episcopal Church, but the suspect, a…