"The investigation is ongoing," said Mesa Public Schools spokeswoman Helen Hollands. "I can't comment on the legitimacy of the threat as all the facts have not been gathered yet. Consequences for the involved students will be based on the outcome of the investigation and our discipline policy."

The student reportedly found a note that said "I will kill you" in her desk at Mesa's Booker T. Washington Elementary School on Tuesday. The note contained the student's first name and the signature of another student, but school officials are not certain who the author is.

Hollands said punishment for the writer of the note could range from short term suspension to expulsion and "will be based on several factors such as age, actual circumstances and past history."

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