Ahern , from Cork City , had been killed near Roslea in south - east Fermanagh .
Coen was the first volunteer from the Southern Command to be killed on active service since Tony Ahern died in May 1973 .
Tony Ahern , from Cork City , had been killed near Roslea in south - east Fermanagh .
Coen was the first volunteer from the Southern Command to be killed on active service since Tony Ahern died in May 1973 .