The FBI and other law enforcement personnel responded to a man in the Dirksen lobby who walked into the courthouse armed with ...

CBS News Chicago witnessed the man being tackled by law enforcement and removed from the courthouse lobby on a stretcher.

The man held up a sign that read "call lawyer" during the lengthy standoff, which led to a mandatory evacuation. There were no reports of injuries, and there was no danger to the public, authorities ...

A Chicago man is charged with pulling a knife in the lobby of the Dirksen U.S. Courthouse, leading to a 9-hour standoff.

A 38-year-old man is facing a felony charge after allegedly threatening to harm himself with a knife during a lengthy ...

CHICAGO (WLS) -- A standoff at the Dirksen Federal Building downtown Chicago ended after roughly nine hours Tuesday night.

An FBI affidavit alleges that Mario Santoyo, 38, refused to follow law enforcement's commands when told to put down a knife ...

The Dirksen Federal Building and its surrounding streets are back open Wednesday morning after a knife-wielding man entered ...

Chicago’s Dirksen Federal Courthouse was placed on lockdown Tuesday morning after reports of a knife-wielding person inside ...

A person who entered Chicago’s federal courthouse with a knife was taken to the hospital Tuesday night after a standoff with ...

Chicago’s federal courthouse is being evacuated as law enforcement negotiates with a person who entered the lobby with a ...

CHICAGO ( WGN) – The man at the center of Tuesday’s standoff at the Dirksen Federal Building downtown has been charged. The ...