Séan Neeson said: “I give my full support to the campaign to establish an inquiry into the death of Ranger Smith.
“It is just and proper that there should be a full and searching inquiry into the death of Cyril Smith in order to help the family find out the truth.
“It has been suggested that his life was lost while the security forces had been trying to protect the identity of an informer within the Provisional IRA.
“I hope to be joined at the handing over of the petition by all of the other Assembly Members from East Antrim.”
ENDS