pentagon

The memorial was created in Indianapolis 10 years ago, with two steel beams from the World Trade Center. The beams are now joined by limestone from the Pentagon and a tree grown from another that survived at Ground Zero.

Mayor John Hamilton joined local firefighters, Army National Guard members and Monroe County law enforcement at a memorial for attack victims at Ivy Tech.

Once the entire group safely exited the building, Buher said there was another loud noise. He had no idea it was the sound of their escape route collapsing.

Twenty years ago, the country changed forever after terrorists flew commercial jets into the World Trade Center, The Pentagon, and a rural Pennsylvania field, killing thousands.