January 9, 2001 - Prosecutors drop the lesser charges of conspiracy and endangering aircraft safety against al Megrahi and Fhimah and ask the court to only consider the murder charges.
January 10, 2001 - Prosecutors present their closing arguments in the case after calling 232 witnesses over about eight months. Defense closing arguments follow, after lawyers for the pair call only three witnesses.
January 31, 2001 - Abdel Baset Ali Mohmed al Megrahi, is found guilty and jailed for a minimum of 27 years. Al Amin Khalifa Fhimah, is found not guilty.
March 14, 2002 - Abdel Baset Ali Mohmed al Megrahi loses his appeal against his murder conviction in the 1988 Lockerbie bombing.
2003 - President Gadhafi agrees to pay $2.7 billion in compensation to families of those killed in the bombing.
June 28, 2004 - The United States resumes direct diplomatic ties with Libya after 24 years.
June 2007 - The Scottish Criminal Cases Review Commission (SCCRC) rules that al Megrahi can appeal his conviction. The appeal is expected to be heard sometime in 2009.
October 2008 - It is announced that Abdel Baset Ali Mohmed al Megrahi is suffering from terminal cancer.
October 31, 2008 - President George W. Bush signs an executive order that restores Libya's immunity from terrorism related lawsuits.
November 2008 - U.S. Senator Frank Lautenberg announces at a press conference that the families of American victims of the Pan-Am bombing have received final compensation from the Libyan government. Each family received about $10 million, paid in installments between 2004 and 2008.
August 20, 2009 - Scottish Justice Secretary Kenny MacAskill announces that Abdel Baset Ali Mohmed al Megrahi will be released from prison on compassionate grounds due to his terminal cancer. After being released, al Megrahi returns to Libya and receives a jubilant welcome.
August 2, 2010 - Senators Robert Menendez and Frank Lautenberg hold a press conference to outline their plan to press for more information about the 2009 release of al Megrahi. A group of U.S. senators is attempting to investigate rumors that the Lockerbie bomber was released as part of a deal to allow BP to drill off the coast of Libya.
July 26, 2011 - Al Megrahi appears in a wheelchair at a pro-Gadhafi rally in Tripoli.
August 28, 2011 - CNN's Nic Robertson tracks down al Megrahi at his family's villa in Tripoli. He appears to be comatose and near death, on oxygen and an IV. The National Transitional Council announces that it will not allow al Megrahi's extradition. Justice Minister Mohammed al-Alagi says, "We will not give any Libyan citizen to the West."
October 2, 2011 - Reuters interviews al Megrahi at his home. Al Megrahi claims his innocence.
May 20, 2012 - Abdel Baset Ali Mohmed al Megrahi dies in Libya.