(STMW) — An employee of the review board that investigates officer-involved shootings for the Chicago Police was charged after he allegedly threatened to kill himself and three co-workers.

Brian Lockhart, 35, was charged with one felony count of threatening a public official, according to the Cook County Sheriff’s Office. Lockhart, who was booked into jail on Thursday, is being held on $100,000 bond, according to jail records.

Earlier this week Lockhart, who is employed by the Independent Police Review Authority, allegedly threatened to kill himself and three co-workers, an IPRA official said Saturday evening.

The IPRA official declined to comment further.

Ilana Rosenzweig, chief administrator for the city-run agency, declined to discuss the incident because she said it is “a personnel issue.”

Lockhart was charged with three counts of aggravated assault to a public employee, Chicago Police News Affairs said.

IPRA is a city agency independent of the police department that investigates police misconduct, including allegations of excessive force and officer-involved shootings.

Lockhart’s next court date is scheduled for Tuesday in Chicago Police Court, according to records.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2013. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)