A staff member of the Charles de Gaulle airport holds a flower to mourn victims in the May 23 airport roof collapse at a memorial ceremony in Paris June 2, 2004. The tragedy claimed four lives and left three injured.

A staff member of the Charles de Gaulle airport holds a flower to mourn victims in the May 23 airport roof collapse at a memorial ceremony in Paris June 2, 2004. The tragedy claimed four lives and left three injured.

A woman attends a memorial ceremony for those who were killed in the May 23 Charles de Gaulle airport roof collapse, in Paris June 2, 2004. The tragedy claimed four lives and left three injured.