Mr. Rannazzisi, who declined requests for an interview, said in his statement that, once he had lied, he could not figure out a way to undo the damage.

“For many years, more than anything,” he said, “I have wished that, with silence, I could somehow erase a story told by an immature young man. It only made me more ashamed. How could I tell my children to be honest when I hadn’t come clean about this?”

His interviews, though, several of which remain posted on the Internet, show that a decade after the Sept. 11 attacks, Mr. Rannazzisi was still relating a harrowing experience. In a 2011 interview on the podcast “Sklarbro Country,” Mr. Rannazzisi said that he had gotten a good severance package from Merrill Lynch and that he clearly understood that Sept. 11 was a sensitive topic. “I’ve spoken about it before,” he said. “I just don’t ever want to feel like, anyone, I am cashing in or anything like that.”