CCTV footage appearing to show Elaine O'Hara and her alleged killer Graham Dwyer entering her apartment complex together has been shown in court.

The architect of Kerrymount Close, Foxrock denies murdering the childcare worker for his own sexual gratification at Killakee in the Dublin mountains on August 22nd 2012.

The CCTV footage appears to show Mr Dwyer (42) entering the Belarmine apartment complex in Stepaside on nine separate occasions between January 21st and August 15th 2012.

The last sighting is just a week before the architect is alleged to have stabbed Ms O'Hara to death in Killakee to fulfil his sexual desires.

In one clip, the couple appear to enter the complex and take the lift together.

In another CCTV clip the man is exiting the lift with a small rucksack.

The prosecution showed the jury a still of this image beside a photograph of the back pack found in the Vartry reservoir - along with Ms O'Hara's keys and bondage items.