That's one of the headlines in today's Observer. The article starts:

"The key piece of material evidence used by prosecutors to implicate Libya in the Lockerbie bombing has emerged as a probable fake. Nearly two decades after Pan Am flight 103 exploded over Scotland on 21 December, 1988, allegations of international political intrigue and shoddy investigative work are being levelled at the British government, the FBI and the Scottish police as one of the crucial witnesses, Swiss engineer Ulrich Lumpert, has apparently confessed that he lied about the origins of a crucial 'timer' - evidence that helped tie the man convicted of the bombing to the crime."
http://observer.guardian.co.uk/world/story/0,,2160655,00.html

I liked the last paragraph too:
"Few people apart from conspiracy theorists and investigative journalists working on the case were prepared to believe Bollier until the end of last month, when Lumpert, one of his former employees, walked into a Zurich police station and asked to swear an affidavit before a notary."

Those krazy konspiracy theorists were right after all!

Now, if the Libyans were framed, they were framed by somebody with some end in mind. By whom and to what end? Given that the CIA had previously framed Libya in a false flag operation a couple of years previously (please see Unsafe at any Altitude by Joe and Susan Trento), I know who is top of my shortlist.