Jailed Charleston church shooting suspect involved in assault: Sheriff

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Accused Charleston Church Shooter Assaulted in Jail

NORTH CHARLESTON, S.C. (Reuters) - The white gunman accused of killing nine black parishioners at a Charleston, South Carolina, church last year was slightly injured in jail by another inmate early Thursday, Charleston County Sheriff Al Cannon said on Thursday.

Dylann Roof, 22, was outside his cell and getting ready to shower at the North Charleston jail where he is detained when the assault occurred, the sheriff said.

Cannon said he did not know what motivated the 25-year-old inmate, Dwayne Stafford, who is black, to punch Roof a number of times in the face and back. Officials were unaware of any verbal exchanges between the two inmates in the past, he said.

Prosecutors have said Roof's attack on the historic Emanuel African Methodist Episcopal Church in June 2015 was racially motivated.

On Thursday, two detention officers quickly responded and separated the inmates, Cannon said.

The church shooting suspect is being held in a protective custody unit at the Sheriff Al Cannon Detention Center and is not supposed to have any interaction with other inmates.

Cannon said his office will investigate how Stafford was able to exit his cell, which should have been locked while Roof was showering.

The sheriff said he also wanted to know why one detention officer was taking a break while another responded to an inmate who needed toilet paper, leaving Roof unguarded.

"At the very least, we have complacency, which for police officers and detention officers is one of the biggest challenges we face," the sheriff said. "This certainly serves as a wakeup call."

Look back at the deadly shooting in Charleston:

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Charleston SC shooting, scene and suspect - Dylann Roof
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Charleston SC shooting, scene and suspect - Dylann Roof
Photos found on a website that allegedly belongs to church shooting suspect Dylann Roof.
Photos found on a website that allegedly belongs to church shooting suspect Dylann Roof.
Photos found on a website that allegedly belongs to church shooting suspect Dylann Roof.
Photos found on a website that allegedly belongs to church shooting suspect Dylann Roof.
Photos found on a website that allegedly belongs to church shooting suspect Dylann Roof.
Photos found on a website that allegedly belongs to church shooting suspect Dylann Roof.
Photos found on a website that allegedly belongs to church shooting suspect Dylann Roof.
Photos found on a website that allegedly belongs to church shooting suspect Dylann Roof.
Photos found on a website that allegedly belongs to church shooting suspect Dylann Roof.
Photos found on a website that allegedly belongs to church shooting suspect Dylann Roof.
Photos found on a website that allegedly belongs to church shooting suspect Dylann Roof.
Dylann Roof appears via video before a judge in Charleston, S.C, on Friday, June 19, 2015. The 21-year-old man accused of killing nine people inside a black church in Charleston made his first court appearance Friday, with the relatives of all the victims making tearful statements. (Centralized Bond Hearing Court, of Charleston, S.C. via AP, Pool)
Dylann Roof appears via video before a judge in North Charleston, S.C, on Friday, June 19, 2015. The 21-year-old man accused of killing nine people inside a black church in Charleston made his first court appearance Friday, with the relatives of all the victims making tearful statements. (Centralized Bond Hearing Court, of Charleston, S.C. via AP, Pool)
Dylann Roof appears via video before a judge in Charleston, S.C., on Friday, June 19, 2015. The 21-year-old accused of killing nine people inside a black church in Charleston made his first court appearance, with the relatives of all the victims making tearful statements. (Centralized Bond Hearing Court, of Charleston, S.C. via AP)
Charleston, S.C., shooting suspect Dylann Storm Roof is escorted from the Cleveland County Courthouse in Shelby, N.C., Thursday, June 18, 2015. Roof is a suspect in the shooting of several people Wednesday night at the historic The Emanuel African Methodist Episcopal Church in Charleston. (AP Photo/Chuck Burton)
Charleston, S.C., shooting suspect Dylann Storm Roof is escorted from the Cleveland County Courthouse in Shelby, N.C., Thursday, June 18, 2015. Roof is a suspect in the shooting of several people Wednesday night at the historic The Emanuel African Methodist Episcopal Church in Charleston. (AP Photo/Chuck Burton)
Charleston, S.C., shooting suspect Dylann Storm Roof is escorted from the Cleveland County Courthouse in Shelby, N.C., Thursday, June 18, 2015. Roof is a suspect in the shooting of several people Wednesday night at the historic The Emanuel African Methodist Episcopal Church in Charleston. (AP Photo/Chuck Burton)
This photo provided by Charleston County Sheriff's Office shows Dylann Roof, Thursday, June 18, 2015. Roof, 21, was arrested Thursday in the slayings of several people Wednesday, including the pastor, at a prayer meeting inside The Emanuel African Methodist Episcopal Church in Charleston, S.C. (Charleston County Sheriff's Office via AP)
Charleston, S.C., shooting suspect Dylann Storm Roof is escorted from the Cleveland County Courthouse in Shelby, N.C., Thursday, June 18, 2015. Roof is a suspect in the shooting of several people Wednesday night at the historic The Emanuel African Methodist Episcopal Church in Charleston. (AP Photo/Chuck Burton)
This April 2015 photo released by the Lexington County (S.C.) Detention Center shows Dylann Roof, 21. Charleston Police identified Roof as the shooter who opened fire during a prayer meeting inside the Emanuel AME Church in Charleston, S.C., Wednesday, June 17, 2015, killing several people. (Lexington County (S.C.) Detention Center via AP)
This image has been provided by the Charleston Police Department, Thursday, June 18, 2015. A man opened fire during a prayer meeting inside a historic black church in downtown Charleston, S.C., Wednesday night, June 17, 2015, killing nine people, including the pastor in an assault that authorities are calling a hate crime. The shooter remained at large Thursday. (Photo via Charleston Police Department)
This image has been provided by the Charleston Police Department, Thursday, June 18, 2015. A man opened fire during a prayer meeting inside a historic black church in downtown Charleston, S.C., Wednesday night, June 17, 2015, killing nine people, including the pastor in an assault that authorities are calling a hate crime. The shooter remained at large Thursday. (Charleston Police Department via AP)
The Emanuel AME Church is viewed behind a police vehicle on June 18, 2015 in Charleston, South Carolina, after a mass shooting at the Church on the evening of June 17, 2015. US police on Thursday arrested a 21-year-old white gunman suspected of killing nine people at a prayer meeting in one of the nation's oldest black churches in Charleston, an attack being probed as a hate crime. The shooting at the Emanuel African Methodist Episcopal Church in the southeastern US city was one of the worst attacks on a place of worship in the country in recent years, and comes at a time of lingering racial tensions. AFP PHOTO/BRENDAN SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
A police officer holds up a tape in front of the Emanuel AME Church June 18, 2015 in Charleston, South Carolina, after a mass shooting at the church on the evening of June 17, 2015. US police on Thursday arrested a 21-year-old white gunman suspected of killing nine people at a prayer meeting in one of the nation's oldest black churches in Charleston, an attack being probed as a hate crime. The shooting at the Emanuel African Methodist Episcopal Church in the southeastern US city was one of the worst attacks on a place of worship in the country in recent years, and comes at a time of lingering racial tensions. AFP PHOTO/BRENDAN SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
Map locates Charleston, S.C., site of a church shooting; 3c x 3 inches; 146 mm x 76 mm;
A view ofthe Emanuel AME Church is seen June 18, 2015 in Charleston, South Carolina, after a mass shooting at the church on the evening of June 17, 2015. US police on Thursday arrested a 21-year-old white gunman suspected of killing nine people at a prayer meeting in one of the nation's oldest black churches in Charleston, an attack being probed as a hate crime. The shooting at the Emanuel African Methodist Episcopal Church in the southeastern US city was one of the worst attacks on a place of worship in the country in recent years, and comes at a time of lingering racial tensions. AFP PHOTO/BRENDAN SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
Map locates Charleston, S.C., site of a church shooting; 1c x 2 inches; 46.5 mm x 50 mm;
The sun begins to rise behind the steeple of Emanuel AME Church, Thursday, June 18, 2015, in Charleston, S.C. On Wednesday, a white man opened fire during a prayer meeting inside the historic black church, killing multiple people, including the pastor, in an assault that authorities described as a hate crime. (AP Photo/David Goldman)
A man kneels across the street from where police gather outside the Emanuel AME Church following a shooting Wednesday, June 17, 2015, in Charleston, S.C. (Wade Spees/The Post And Courier via AP)
Surreace Cox, of North Charleston, S.C., holds a sign during a prayer vigil down the street from the Emanuel AME Church early Thursday, June 18, 2015, following a shooting Wednesday night in Charleston, S.C. (AP Photo/David Goldman)
Police talk to a man outside the Emanuel AME Church following a shooting Wednesday, June 17, 2015, inCharleston, S.C. (Wade Spees/The Post And Courier via AP)
A passing motorist looks out her window as she stops at an intersection down the street from the Emanuel AME Church early Thursday, June 18, 2015 following a shooting Wednesday night in Charleston, S.C. (AP Photo/David Goldman)
A man looks on as a group of people arrive inquiring about a shooting across the street Wednesday, June 17, 2015, in Charleston, S.C. (AP Photo/David Goldman)
Chaplain James St. John, center, leads senators in prayer, Thursday, June 18, 2015, at the Statehouse in Columbia, S.C. State Sen. Clementa Pinckney was one of those killed Wednesday night in a shooting at the Emanuel AME Church in Charleston. (AP Photo/Rainier Ehrhardt)
FILE - In this Tuesday, Nov. 26, 2012, file photo, state Sen. Clementa Pinckney, right, talks to a supporter during a break in a hearing protesting his re-election in Columbia, S.C. A white man opened fire during a prayer meeting inside an historic black church, in Charleston, S.C., on Wednesday, June 17, 2015, killing multiple people, including Pinckney, the church's pastor, in an assault that authorities described as a hate crime. (AP Photo/Jeffrey Collins, File)
State Senator Vincent Sheheen (D-Kershaw) gets emtional as he sits next to the draped desk of state Sen. Clementa Pinckney, Thursday, June 18, 2015, at the Statehouse in Columbia, S.C. Pinckney was one of those killed, Wednesday night in a shooting at the Emanuel AME Church in Charleston. (AP Photo/Rainier Ehrhardt)
Charleston Mayor Joseph Riley, right, stands next to Police Chief Gregory Mullen as he addresses the media down the street from the Emanuel AME Church early Thursday, June 18, 2015 following a shooting Wednesday night in Charleston, S.C. (AP Photo/David Goldman)
Worshippers gather to pray in a hotel parking lot across the street from the scene of a shooting Wednesday, June 17, 2015, in Charleston, S.C. (AP Photo/David Goldman)
Lisa Doctor joins a prayer circle down the street from the Emanuel AME Church early Thursday, June 18, 2015 following a shooting Wednesday night in Charleston, S.C. (AP Photo/David Goldman)
The steeple of Emanuel AME Church is visible as police close off a section of Calhoun Street early Thursday, June 18, 2015 following a shooting Wednesday night in Charleston, S.C. (AP Photo/David Goldman)
Charleston Emergency Management Director Mark Wilbert holds a flier distributed to media, Thursday, June 18, 2015, with surveillance footage of a suspect wanted in the connection of a shooting Wednesday at Emanuel AME Church during a news conference, in Charleston, S.C. (AP Photo/David Goldman)
Images on a flier provided to media, Thursday, June 18, 2015, by the Charleston Police Department show surveillance footage of a suspect wanted in connection with a shooting Wednesday at Emanuel AME Church inCharleston, S.C. (Courtesy of Charleston Police Department via AP)
The desk of state Sen. Clementa Pinckney is draped in black cloth with a single rose and vase, Thursday, June 18, 2015, at the Statehouse in Columbia, S.C. Pinckney was one of those killed Wednesday night in a shooting at the Emanuel AME Church in Charleston. (AP Photo/Rainier Ehrhardt)
Investigators work outside the Emanuel AME Church early Thursday, June 18, 2015, following a shooting Wednesday night in Charleston, S.C. (AP Photo/David Goldman)
Worshippers embrace following a group prayer across the street from the scene of a shooting at Emanuel AME Church, Wednesday, June 17, 2015, in Charleston, S.C. A white man opened fire during a prayer meeting inside the historic black church, killing multiple people, including the pastor, in an assault that authorities described as a hate crime. (AP Photo/David Goldman)
A distraught man is comforted as a group of concerned people arrive inquiring about a shooting across the street Wednesday, June 17, 2015, in Charleston, S.C. (AP Photo/David Goldman)
Worshippers embrace following a group prayer across the street from the Emanuel AME Church following a shooting Wednesday, June 17, 2015, in Charleston, S.C. (AP Photo/David Goldman)
Worshippers gather to pray in a hotel parking lot across the street from the Emanuel AME Church following a shooting Wednesday, June 17, 2015, in Charleston, S.C. (AP Photo/David Goldman)
Charleston Police Chief Gregory Mullen speaks during a news conference, Thursday, June 18, 2015, following Wednesday's shooting at Emanuel AME Church, in Charleston, S.C. Police released surveillance video of a possible suspect and vehicle in the fatal shooting of multiple people at the historic black church. (AP Photo/David Goldman)
Police stand outside the Emanuel AME Church following a shooting Wednesday, June 17, 2015, in Charleston, S.C. (AP Photo/David Goldman)
An FBI agent walks across the street from the Emanuel AME Church following a shooting Wednesday, June 17, 2015, in Charleston, S.C. (AP Photo/David Goldman)
Worshippers gather to pray down the street from the Emanuel AME Church following a shooting Wednesday, June 17, 2015, in Charleston, S.C. (AP Photo/David Goldman)
Police stand outside the Emanuel AME Church following a shooting Wednesday, June 17, 2015, in Charleston, S.C. (AP Photo/David Goldman)
Police close off a section of Calhoun Street near the Emanuel AME Church following a shooting Wednesday, June 17, 2015, in Charleston, S.C. (AP Photo/David Goldman)
Police walk down the street from the Emanuel AME Church following a shooting Wednesday, June 17, 2015, in Charleston, S.C. (AP Photo/David Goldman)
Police stand outside the Emanuel AME Church following a shooting Wednesday, June 17, 2015, in Charleston, S.C. (AP Photo/David Goldman)
A police officer uses a flashlight while searching the area following a shooting Wednesday, June 17, 2015, in Charleston, S.C. (AP Photo/David Goldman)
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The sheriff's office issued an incident report that said an arrest warrant would be sought to charge Stafford with assault and battery, but Cannon later said Roof and his lawyer had indicated they would not pursue charges.

Prosecutors have charged Roof with dozens of offenses in both state and federal courts, including murder and hate crimes, and could face the death penalty. The federal trial is set to begin Nov. 7.

Court records filed by prosecutors in federal court in July said Roof used eight Glock handgun magazines and fired about 80 rounds during the massacre which he had plotted for months.

Roof's attorneys argued in U.S. court papers filed this week that he should not face the federal death penalty, which they deemed "cruel and unusual punishment" and, as a result, unconstitutional.

(Reporting by Harriet McLeod; Writing by Colleen Jenkins; Editing by David Gregorio; Additional reporting by AOL.com)

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