Bomb threat found in classroom building before deadly shooting

The message was written in red ink on the back of a flier with a piece of clear tape attached. The handwriting was sloppy. "Bomb will go off if you open the door," it said. The word "Bomb" was underlined. The makeshift sign, on a door inside Norris Hall, caught the attention of Virginia Tech associate engineering professor Janis Terpenny as she started her morning on April 16. Terpenny grabbed the sign and opened the door, despite the warning. Moments later, she handed it to janitor Pamela Tickle, who decided to take it to a supervisor. As the two women discussed the sign, Seung-Hui Cho was nearby, preparing to launch his murderous rampage.

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