early 1989, I was working as a business reporter in Washington, D.C., and interviewing a private investigator for a story about his company. At the end of our conversation, he casually mentioned he’d done some research into the assassination of President John F. Kennedy. “Oh yeah?” I said, in an ironic, indifferent way. “So who killed him?” He said: “Well, I think this gunsmith in Baltimore, a guy named Howard Donahue, figured it out.” The private eye showed me a magazine article from 1977 and as I read it, my skepticism began to fade. Within a week, I was heading...
