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Graham Dwyer's semen and Elaine O'Hara's blood found on her stab-cut mattress
Summary
In the 27th day of Graham Dwyer's trial, forensic evidence showed his semen and Elaine O'Hara's blood on her mattress, with DNA profiles matching Dwyer in three stains and O'Hara in two. Blood on the mattress and a bean‑bag cover also matched O'Hara. No semen was found on a black dress or inside a gas mask, and a rope from the apartment contained mixed DNA from two people. A spade near O'Hara's remains had no blood or semen, though partial DNA from at least two people was detected. Paint on the spade did not chemically match paint from Dwyer's shed or fence. The trial also heard about mobile phone data and the last sighting of O'Hara on 22 August 2012, with her remains found in Killakee on 13 September 2013. The State alleges Dwyer stabbed O'Hara for sexual gratification.
Who, what, where, when and why
What: Report matter: Graham Dwyer's semen and Elaine O'Hara's blood found on her stab-cut mattress. Charges or matters: murdering Ms O'Hara at Killakee, Rathfarnham on 22nd August 2012, hours after she was discharged from a mental health hospital; murdering the 36-year-old childcare worker on that date. Procedural stage: trial
When:
- 22nd August 2012 Hearing Or Sentence
- August 22nd 2012 Hearing Or Sentence
- September 13th Hearing Or Sentence
- 2015-02-27 Publication
Why: The witness explained that the absence of semen or blood from the items was not significant, given their exposure to the elements for such a long period of time. CNI source report
Case subjects
Accused
Charges: murdering Ms O'Hara at Killakee, Rathfarnham on 22nd August 2012, hours after she was discharged from a mental health hospital; murdering the 36-year-old childcare worker on that date (Alleged Or Contested)
Places mentioned
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