WILLIAMSPORT, LYCOMING COUNTY (WBRE/WYOU) — A man was arrested after police say he posted on Facebook a countdown to a "mass casualty event" during the Little League World Series.

On August 12, officers were asked to meet regarding an incident at the Little League World Series complex.

According to the South Williamsport Police Department, an employee with Securitas, Isaiah Randall, 20, of Williamsport, sent a threatening text to the Securitas supervisor stating, "Yu guys better have heavy security after the (expletive) yu pulled today because I will be back."

That same day, the U.S. Marshals Fugitive Task Force alerted police to a post Randall made to his Facebook page.

As stated in the affidavit, the post read, "MASS CASUALTY EVENT" with a countdown timer under it reading "01 day: 22

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