The Second Confesion

Wolfe shook his head. “I am not giving names, and anyway I said not far from the top.” His eyes went from right to left and back again. “I am obliged for your forbearance; these details are necessary. I have told you that I know X's name, but I have never seen him. I first got some knowledge of him eleven years ago, when a police officer came to me for an opinion regarding a murder he was working on. I undertook a little inquiry through curiosity, a luxury I no longer indulge in, and found myself on a trail leading on to ground where the footing was treacherous for a private investigator. Since I had no client and was not committed, I reported what I had found to the police officer and dropped it. I then knew there was such a man as X, and something of his activities and methods, but not his name.