A year after Dylann Roof was sentenced to death for killing nine people at a historically black church in Charleston, South Carolina, his sister makes headlines. As reported by CNN, Morgan Roof was arrested on Wednesday for bringing drugs and weapons to her South Carolina school.

Yesterday, as students across the nation observed a nationwide walkout to honor the 17 people killed at Florida's Marjory Stoneman Douglas High School, Roof was arrested after a school resource officer was notified that she was carrying marijuana, pepper spray and a knife on campus, according to the Richland County Sheriff's Department.

A judge set a $5,000 bond for Roof on the condition that she would not return to the school, and she was charged with simple possession of marijuana and two counts of carrying weapons on school grounds.

The principal of the high school wrote a letter to address several incidents that happened on the school's campus on Tuesday and Wednesday.

"I realize that rumors and the tragic school shootings in Florida are events that can cause anxiety for our students, parents, faculty, and the community," Principal Susan Childs wrote. "Be assured that the safety of our students will always be our top priority. We must continue to work together to maintain a safe and positive learning environment."