Pan Am Flight 103: Lockerbie tragedy lives on in memories

Pan Am Flight 103 exploded over the Scottish town on December 21 1988, killing 270 people.

Abdelbaset Ali Mohmed Al Megrahi, the Libyan convicted of the bombing, remains alive in Tripoli 16 months after being released from jail on compassionate grounds. Megrahi, who has prostate cancer, was freed from Greenock prison in August last year with an estimated three months to live.

Many relatives condemned the release while others continue to raise questions over Megrahi's conviction.

Pamela Dix, from Surrey, has spent the last 22 years fighting for a full independent inquiry into events surrounding the bombing that killed her brother Peter.

She insisted the number of years that have passed do not matter and she will continue her campaign for truth out of duty to her brother.

"The number of years is meaningless in a way as the loss of those lives does not diminish. They have not had the chance to live their lives.

"It was unacceptable then and it is unacceptable now, that will never change."

Peter Dix, 35, was travelling to New York with his job as a management consultant when he died along with 258 other passengers.

A further 11 people died on the ground in the disaster, just four days before Christmas.

Ms Dix, 52, is one of the founding members of Disaster Action, set up in 1991, providing support for the victims and relatives of disasters.

She said the enormity of what happened at Lockerbie was still as poignant more than two decades later.

She said: "Here we are 22 years later without knowing why it happened.

"I always find it particularly depressing at this time of year. Coming into December, the anticipation of the anniversary is still there."

Megrahi was sentenced to life in jail in 2001 after he was convicted for the murder of 270 people.

The terminally-ill prisoner was granted compassionate release by Scottish Justice Secretary Kenny MacAskill on August 20 2009, causing outrage in the United States.

Most of those who died in the Lockerbie bombing were American citizens.