25 minutes before President John F Kennedy was assassinated in Dallas in 1963, a Cambridge newspaper reporter received an anonymous call telling him contact the US embassy for "some big news."
This was detailed in a memo sent to the Director of the FBI, saying “The British security service (MI-5) has reported that at 18:05 GMT on 22nd November an anonymous telephone call was made in Cambridge, England, to the senior reporter of the Cambridge News. The caller said only that the Cambridge News reporter should call the American Embassy in London … and then hung up." It follows with, "the important point is that the call was made, according to MI-5 calculations, about 25 minutes before the President was shot. The Cambridge Reporter had never received a call of this type before."
The memo was initially released in July, but was not picked up on by the press. It received attention when thousands of files relating to the probe into Kennedy's death were released on Thursday. In 1992, the US Congress passed a law setting a 25-year deadline for all of the classified materials concerning the investigation to be put into the public domain. On Wednesday, President Donald Trump tweeted, "The long anticipated release of the #JFKFiles will take place tomorrow. So interesting!"