Graham Dwyer trial hears mobile phone data evidence

The Central Criminal Court jury heard technical evidence on the 27th day of the trial of Graham Dwyer, who is charged with murdering Elaine O'Hara at Killakee, Rathfarnham on 22nd August 2012. Mr Dwyer, aged 42, has pleaded not guilty to the charge. Witnesses including telecommunications engineers provided detailed mobile phone records and data covering periods before and after the alleged offence. The court also heard from a woman who had engaged Mr Dwyer's architectural services in County Galway in 2009, and from witnesses who placed him at various locations during July 2012. A Ballyshannon hotel proprietor testified to his movements that month. The State's case is that the killing occurred hours after Ms O'Hara's discharge from a mental health facility. Her remains were discovered at Killakee in September 2013. The trial continues before Mr Justice Tony Hunt and a jury of five women and seven men.