Graham Dwyer's murder trial has heard diary entries were found on Elaine O'Hara's laptop where she said she felt angry, sad and lonely and had an urge to self harm.
Detective Garda Bríd Wallace has told the Central Criminal Court that the entries on the childcare worker's HP Compaq date from November 2010.
The court also heard the 36 year old appears to have had 2 or probably 3 profiles on S&M web site alt.com.
Mr Dwyer, an architect from Kerrymount Close, Foxrock denies murdering her in the Dublin mountains in August 2012, in what is alleged to have been a sexually motivated stabbing.
