Glenholme School in Washington initiated a lockdown of the facilities May 21 after a call was received from a former student threatening to kill a staff member, state police said.

The former student, Colby M. Paul, was located at his residence in the town of Avon and taken into custody by Avon police.

He had attended Glenholme School briefly in 2009.

Paul was transported to state police Troop L headquarters in Litchfield and charged with first-degree harassment, second-degree threatening, second-degree reckless endangerment and second-degree breach of peace.

Paul was released on $2,500 bond for a June 1 court date in Superior Court in Bantam.

There were no injuries involved in the incident at Glenholme, which lifted its lockdown shortly after Paul had been located and taken into custody, police said.