A Drogheda man has been found not guilty by a Central Criminal Court jury on two charges of raping his teenage sister. But, after more than seven hours' deliberations, the jury failed to agree on a third charge of sexual assault and was discharged by Mr Justice Patrick Smith. The 23-year-old man had pleaded not guilty to two counts of rape and one count of sexual assault on dates unknown between May 1st, 1996, and July 19th, 1997.