The fact remains...

...The release last year was controversial and emotion-charged for the families of those killed when a bomb blew up Pan Am Flight 103 over Lockerbie, Scotland, on Dec. 21, 1988, killing 270 people, 189 of them Americans.

Abdel Baset al-Megrahi was convicted in the bombing. He was serving a life sentence when Scottish authorities released him last August to return to Libya, saying he had cancer and less than three months to live. He received a hero's welcome in Libya and is still alive.

[British Prime Minister David] Cameron said he's seen no evidence to support allegations that oil giant BP pressured the British government in Scotland to release the terrorist in exchange for Libyan oil contracts....

...BP insists that it never discussed al-Megrahi, but the company acknowledges that it pressed the British government to sign a general prisoner transfer agreement with Libya.

In May 2007, the British and Libyan governments signed a memorandum agreeing to negotiate prisoner transfers as well as other issues. The same month, BP signed an oil agreement with Libya. ...McClatchy

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More than seven months after his release he was reported by an anonymous source to have made a remarkable recovery following chemotherapy in Libya and was enjoying a comfortable lifestyle in Tripoli.

Dr Karol Sikora, who assessed Abdelbaset Ali Mohmed al-Megrahi for the Libyan authorities stated that Megrahi could survive for 10 years or longer, although this would be very unusual. ...Wikipedia