It's believed the boy knew the woman but their relationship is not known.

The results will determine how the investigation proceeds.

'A man has been charged in relation to Ms Murphy’s death and the matter is before the courts'

'Her death sent shockwaves across the country'

He had been treated in a Dublin hospital since last Thursday.

There will be a minutes silence in schools across the country at 11am.

The 23 year old primary school teacher was killed while jogging along in Tullamore, Co. Offaly last Wednesday.