This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

KANSAS CITY, Mo. — The bomb scare that led to the evacuations of the state and federal office buildings in downtown Kansas City, Missouri, on Friday afternoon was, in the words of the FBI, a misunderstanding.

But the man at the center of Friday’s bomb scare in downtown Kansas City has had a long, colorful history in Kansas City, and served as a federal witness in the 1993 World Trade Center bombing.

Wahed Moharam, 57,  a native of Egypt, was known to many Kansas City Chiefs fans as “Helmet Man,” and could often be seen at Chiefs games wearing a Chiefs jersey with his bald head airbrushed as a Chiefs helmet.

He also served as a key federal witness in the 1993 World Trade Center bombing trial, and then moved to Kansas City as a part of the witness protection program under the name “Edgar Sanchez.”

He has since begun reusing his actual name, and now runs a cleaning business in eastern Jackson County.

In 2003, the Chiefs – once they became aware of his history as a witness in a major terror trial – took away his season tickets and forbade him from entering Arrowhead Stadium as Helmet Man out of safety concerns, a move that drew some criticism at the time.