Channel 5’s Return to Lockerbie looks at one of the most horrifying acts of mass murder in British history, but what exactly happened on flight Pan Am 103?
How I found the Lockerbie bomber : Victim s brother pored over CIA cables, travelled to Libya and met an assassin before giving suspect s name to the FBI - now US is set to charge him
US prosecutors are set to charge Abu Agila Mas ud with making the bomb that blew up Pan Am Flight 103 over Lockerbie, Scotland, in 1988 - killing 259 people
Charges against Mas ud stem from an investigation carried out by Ken Dornstein
Dornstein s older brother, David, then 25, was one of those killed on the flight
Ken spent six years and $350,000 tracking down Mas ud, who is thought to be serving 10 years in a Libyan jail for being Gaddafi s master bomb-maker
The US is set to unseal charges against a Libyan man suspected of assembling the bomb which killed 270 when it was detonated during a Pan Am flight over Scotland 32 years ago.
The downing of Pan Am flight 103, travelling from London to New York on December 21, 1988, killed hundreds of people over Lockerbie in Britain s largest terrorist atrocity.
Former Libyan intelligence officer Abdelbaset al-Megrahi, who was found guilty in 2001 of mass murder and jailed for life with a minimum term of 27 years, was the only person convicted of the attack.
But now, the US Justice Department is expected to unseal a criminal complaint against Abu Agila Mohammad Masud, who is currently held by Libyan authorities.