YAKIMA — A former Walmart employee has pleaded not guilty to charges he threatened to blow up the chain’s West Valley, Yakima County, outlet and kill two store managers.

The Yakima Herald-Republic reports that Roy Lee Maynard, 41, entered the plea Tuesday morning during his arraignment in Yakima County Superior Court.

Prosecutors charged Maynard with making a threat to bomb property and two counts of felony harassment in connection with the Dec. 10 incident. He is out on his own recognizance as part of the court’s pretrial release program.

Maynard, who had been recently fired from the West Valley Walmart, sent texts to an assistant manager at the store saying he was going to blow up the building and kill two managers, according to a police probable cause affidavit.