But I made most of that case years ago, and my evidence was widely reported. What’s new in the case, and no less outrageous, is this: The dead child they said was Adam is overwhelmingly likely not him. And the only reason we could possibly know this is because when police closed the case investigation in 2008, 27 years after the murder, all the official agency case files finally became available, for the asking. Conclusive certainties in homicide cases are startlingly few and I don’t leap to them. But this is certain: In the now nearly 35 years since the homicide, there never could have been a trial, and never will be a trial, against any defendant for the murder of Adam Walsh. That’s not for lack of suspects; it’s because the identification of the found child as Adam can never be proven in court.