Lee Ielpi is president of the September 11th Families' Association, which opened the Tribute WTC Visitor Center in 2006.
Frank Franklin II/AP
September 4, 2011 Lee Ielpi, a retired New York City firefighter who lost his son on Sept. 11, 2001, is co-founder of the Tribute WTC Visitors Center at ground zero. The center, which celebrates the lives of the victims, has collected reflections of visitors in a new book.
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