The Independent Commission for Reconciliation and Information Recovery is asking for witnesses in the 1990 killing of Thomas Jamison near Donaghmore, County Tyrone. Mr Jamison was 35 when he was shot on the Castlecaulfield Road on 8 March 1990.

Mr Jamison worked as a lorry driver for Henry Brothers in Magherafelt and was a part-time sergeant in the Ulster Defence Regiment based in the same town. He was married with three children. The shooting was attributed to the IRA.

Assistant Commissioner Amanda Logan, who is leading the investigation, said people may have held information about the killing for decades. She urged anyone who saw the attack or knows anything about it to contact the commission, with assurances of confidentiality.

Ryan Jamison, the victim's son, said the family still feels the loss as if it happened recently. He described his father as a hardworking and devoted family man, and said his death left an unfillable void. He asked anyone with knowledge to search their conscience and do the right thing, adding that it is never too late to come forward.

The commission provided details of events leading up to the shooting. Between 3pm and 3.30pm, masked gunmen entered a family home in the Donaghmore area and stayed until shortly before the attack. They left in the homeowners' white Ford Sierra Estate, registration A224 FLL.

Around 4.45pm, masked gunmen entered another home on Foygh Road in Donaghmore, which overlooked the junction with the Castlecaulfield to Donaghmore Road. Mr Jamison was driving a white Mercedes Benz cement mixer lorry, registration JIW 6712, towards Donaghmore. At about 4.55pm, as he approached the junction, gunmen opened fire from outside the Foygh Road house. He was shot multiple times and died at the scene.

The gunmen escaped in the stolen Ford Sierra up Foygh Road, then along Gortnagola Road, before abandoning the vehicle on Kilnaslee Road. No one has been convicted of the killing.