In the letter, written by the Libyan when he was still in Greenock prison, Megrahi insists he is innocent of the crime and blames his conviction on “fraudulent information”.
The Wall Street Journal reports that the letter was discovered in the offices of Mr al-Senussi who was a trusted official in the Gaddafi regime.
According to the Journal: “The letter to Mr. Senussi was found in a steel, four-drawer filing cabinet in the intelligence chief's office in Tripoli. The cabinet had been forced open, apparently by rebels who shot holes in the lock. The office lay in shambles, but many of Mr. Senussi's personal papers appeared untouched.”
In the letter Mr Megrahi says: "I am an innocent man," and blames "fraudulent information that was relayed to investigators by Libyan collaborators."
He blamed "the immoral British and American investigators" who he writes "knew there was foul play and irregularities in the investigation of the 1980s."