Her arrest came on Wednesday after the School Resource Officer at A.C. Flora was contacted by the school administrator about Roof having marijuana, pepper spray, and a knife on school grounds. BET reports, the Snap posted by Roof revealed she said she hopes participants in the school walkout get shot.
The sheriff's department said that in a separate case, two 16-year-old students were arrested after a handgun was found on school grounds on Tuesday. School principal Susan Childs posted a letter to parents on the school's Twitter page explaining what occurred while students walked out of class as part of a national protest calling for gun reform. According to WIS-TV, Morgan Roof had posted a disturbing Snapchat message that related to National Walkout Day.
Roof later told an investigator she had the weapons with her at school "for protection", according to Lt. Curtis Wilson, spokesman for the sheriff's department.
Roof's brother, Dylann, killed nine people during a bible study at Emanuel AME Church in downtown Charleston on June 17, 2015.
The white supremacist stormed the church during a prayer service and shot and killed nine people, before fleeing and becoming the target of a manhunt that ended the morning after.
Last month on Valentine's Day, Nikolas Cruz, 19, fatally gunned down 17 students and staff members at Marjory Stoneman Douglas High School in Parkland, Florida, and injured several others. He was convicted in December 2016 on federal charges in connection with the killings and is now on federal death row in Indiana. The House also passed a legislature on Wednesday that focuses on training educators, law enforcement and students to identify individuals who pose a threat to the school.