Trial hears of O'Hara's 'violent fantasy world'

Graham Dwyer's murder trial has heard Elaine O'Hara had an internal violent fantasy world from the age of 12 that involved restraint situations.

The 42-year-old architect from Kerrymount Close, Foxrock denies stabbing the childcare worker in an allegedly sexually motivated killing at Killakee mountain in Dublin in August 2012.