Attendance was normal Friday morning at Dunwoody High School, two days after threats of violence were scrawled on a wall in a bathroom there.

Quinn Hudson, spokesman for the DeKalb County School District, said vandalism was reported Tuesday. He said the writings suggested something would happen at the school Friday. By 9:30 Friday morning, nothing had.

An investigation by the district’s police found nothing credible in the threats. Still, additional officers were assigned to the school as a precaution.

A note was sent home to parents informing them of the graffiti and letting them know that classes would go on Friday.

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