Larry Wheelock again publicly called for an independent public inquiry into his brother's death.

"We have a lot of information that needs to be aired in an independent investigation. We have no closure, " he told those assembled.

Wheelock, from Summerhill, Dublin, was found unconscious in a cell at Store Street station in June 2005 after he apparently attempted to hang himself with a cord from his tracksuit bottoms. He was rushed to the Mater Hospital but never regained consciousness and died three-and-a-half months later. His family maintains the circumstances of his death were different and that he was mistreated while in a cell.