WASHINGTON — A Pennsylvania man is in custody, accused of threatening to kill a member of Congress.

The U.S. Capitol Police says Richard Griffin, 43, was stopped by officers before he could get through a security screening at the Russell Senate Office Building.

The department says Griffin was on its be on the lookout bulletin, and has a history of emailing a Congressional office, various government officials and law enforcement agencies.

Investigators did not identify the member of Congress whom Griffin threatened.

Griffin is facing a charge of threats to do bodily harm, police say.

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