Jury read letter of retraction by man who previously gave gardai statement admitting to Grangegorman double murder

(Pictured: Mr Mark Nash. Photo: Collins) by Alison O'Riordan A jury has been read a letter of retraction written by a man who previously gave gardai a statement admitting to the murder of two women in Grangegorman in 1997. Mark Nash (42), who has last addresses at Prussia Street and Clonliffe Road i