KANSAS CITY, Kan. (AP) — The top federal prosecutor for Kansas has joined about 70 churchgoers to remember the nine people killed during a South Carolina church shooting.

The Kansas City Star  reports that U.S. Attorney Barry Grissom called Wednesday’s attack “domestic terrorism fueled by racial hatred.” Grissom was among the speakers at a service Saturday morning at the Mt. Zion Baptist Church in Kansas City, Kansas.

Twenty-one-year-old Dylann Roof is jailed on nine counts of murder in the attack. Authorities say Roof, who is white, stayed at a Bible study at the historic African-American church in Charleston for about an hour before opening fire.

The monsignor at St. Patrick Catholic Church, of Kansas City, Kansas, Michael Mullen, prayed for “divine mercy” for the gunman and lauded the forgiveness the victims’ families had expressed.