I have been reading the document WS 1,350  given on Feb 14, 1956  by  Jerome Davin, in the Bureau of Military History and he mentions on Pages 15-16  a man they captured and murdered towards the end of 1920,  whom I cannot find  listed in your very comprehensive site  -  apparently O'Neill from Bridge Street, Arklow, who had joined the BA some years before   The victim  was secretly buried in a field in Rosegreen - it seems the body was never recovere. If Davin's account  is truthful, their victim may have been Intel 

I found nothing on-line to refer except possibly a 2005 death notice for a Mrs O'Neill of Bridge Hotel, Bridge St Arklow - some relation ? Davin was Commandant, 1st Bn [ Rosegreen ] of 3rd South Tipperary Brigade and lived at Rathsallagh Townland.