Mr Dwyer, a 42 year old architect from Kerrymount Close, Foxrock, denies killing Elaine O'Hara at Killakee Mountain in Dublin in August 2012.
The prosecution has been arguing that Graham Dwyer is a sadistic pervert who devised an elaborate plan to stab Elaine O'Hara to death without getting caught.
They say the motive was to satisfy a deep rooted sexual desire and that his intent can be read from the hundreds of text messages recovered from untraceable phones that are alleged to have been sent by him to the childcare worker.
Sean Guerin, leading the prosecution, says the architect can be connected beginning, middle and end to her disappearance and he's asked the jury to discount the notion that this may have been a suicide.
Now it's the turn of defence counsel Remy Farrell who has said that while the jury may find his client repellent they must remember he enjoys the presumption of innocence.
