Broken Arrow police arrested an 18-year-old student on allegations he wrote a message on a high school bathroom mirror alleging a shooting threat would occur the next day.

Investigators arrested Hipolito Hernandez, 18, on a complaint of threatening a violent act, Broken Arrow Police Officer James Koch said. Koch said officers identified Hernandez as the alleged writer of the threat by working with school administrators.

The threat was “ultimately determined not to be credible,” Koch said. The message, discovered Thursday, allegedly threatened a school shooting on Friday. Broken Arrow Police Major Scott Bennett noted that the message threatened a school shooting on the anniversary date of the Sandy Hook shooting.

“We will do everything in our power to prevent chances of a similar event happening here in Broken Arrow,” Bennett said in a statement. “This includes strictly enforcing existing threats laws.”

Six years ago, 20-year-old Adam Lanza fatally shot 20 children, all between 6- and 7-year-olds, and six adults at Sandy Hook Elementary School in Newton, Connecticut. Lanza shot and killed his mother before driving to the school. Lanza committed suicide following the shooting.

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Harrison is an Arkansas transplant in Oklahoma who does his best to keep Tulsa World's readers up to date on breaking news from 5 a.m. to 1 p.m. Phone: 918-581-8369

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