Pierre Salinger is a former White House press secretary to President John F. Kennedy and 'ABC News' journalist. He relayed a bogus report from the Internet (Usenet) to the US News Media on November 8, 1996. The report said that TWA flight 800, which crashed on July 17, 1996, had been the victim of friendly fire (US Navy). As the media got the story, it came up immediately in the national headlines. So the whole world seems to be trolled from a half-baked Usenet rumor.
Citation of the US News Media report:
Quotations
the whole source isn't very clear .. the document could be from the Internet or be only posted also on the Internet.
Earliest citation of Pierre Salinger Syndrome: