Graffiti found at Glenbard South a 'cause for concern'

Glenbard South High School officials have stepped up security after finding graffiti containing messages that were "cause for concern."

Administrators discovered the graffiti Tuesday in three bathrooms in the school near Glen Ellyn and immediately contacted DuPage County sheriff's deputies.

Authorities said Wednesday they've identified the person responsible, but the investigation continues into whether others are involved.

They would not say what the graffiti said, although it did reference a specific date: Monday, Oct. 30.

"Glenbard South immediately notified the DuPage sheriff's office to maintain the safety of students, ascertain the identity of the person responsible and assess the credibility of the threat," Glenbard High School District 87 spokeswoman Peg Mannion said in an emailed statement.

After consulting with sheriff's deputies, district and school officials decided to keep South open on Monday, but officials have added security measures for the "coming days."

As a precaution, administrators have advised students not to bring backpacks or large bags into the school along Butterfield Road west of Route 53. They also say they reserve the right to search anyone or any item upon entering the school.

"Additional police and security will be present, on and around campus, and in the halls during the day," Mannion said.

In a post on South's Schoology website for students, Principal Sandra Coughlin said the graffiti contained a "general threat of violence," according to a screenshot of the notice provided by a parent to the Daily Herald.

Sheriff's spokesman Sgt. Robert Harris would not comment on the nature of the graffiti, citing the ongoing investigation.