UPDATE | Dylann Roof arrested, suspect in Charleston shootings

CHARLESTON, S.C. (AP) — A white man was arrested today in the slayings of nine people, including the pastor, at a prayer meeting inside a historic black church in downtown Charleston.

Dylann Storm Roof, 21, stayed for nearly an hour inside the church Wednesday night before shooting six females and three males at a prayer meeting, Police Chief Greg Mullen said.

Roof put up no resistance after a citizen tip led police to his car this morning in Shelby, N.C., Mullen said.

"Acts like this one have no place in our country," said Attorney General Loretta Lynch, who announced a Justice Department hate crime investigation. "They have no place in a civilized society."

The Emanuel African Methodist Episcopal Church's pastor, state Sen. Clementa Pinckney, was among those killed. Pinckney, 41, was a married father of two who was elected to the state House at 23, making him the youngest member of the House at the time.

"He never had anything bad to say about anybody, even when I thought he should," State House Minority leader Todd Rutherford told The Associated Press. "He was always out doing work either for his parishioners or his constituents. He touched everybody."

Roof's childhood friend, Joey Meek, alerted the FBI after recognizing him in a surveillance camera image that was widely circulated, said Meek's mother, Kimberly Kozny. Roof had worn the same sweatshirt while playing Xbox videogames in their home recently.