In the Birmingham airport recently I noticed just such an item on the ticketing and departure level---the plaque below, which is located on one end of that floor. This memorial acknowledges the death at that spot of Luke Bresette. The ten year-old, his two siblings and parents were passing through Birmingham on their way home to Kansas on March 22, 2013. After an extensive renovation the terminal had reopened only nine days earlier. The family happened to be in front of a free-standing arrival and departure board when the structure fell over. The father was uninjured, but Heather Bresette and her children were pinned under the sign that weighed several hundred pounds.
The mother was taken to UAB Hospital and the youngsters to Children's. All survived except Luke, who died later that day. You can read about the incident in more detail and its aftermath here and here. You can see a photo of the cabinet that fell over taken the day the terminal reopened on the BhamWiki site. The plaque below is located on that portion of the wall behind it.