Graham Dwyer had 'entirely predatory' relationship with Elaine O'Hara, says prosecution

The prosecution in the Graham Dwyer murder trial claims he was in an "entirely predatory" relationship with Elaine O'Hara and stabbed her to satisfy his deep-seated sexual desires.

The architect of Kerrymount Close, Foxrock denies killing the childcare worker at Killakee Mountain in August 2012.