The initial post-mortem results for tragic DCU student Patrick Halpin have failed to find a cause of his death.
Police in London, who are investigating the circumstances surrounding his death lsat week, are now awaiting the results of further tests.
The 18-year-old, who was on a trip with DCU's drama society, had been on a night out with friends when he was last seen leaving a nightclub last Wednesday.
His friends launched a search for him and members of his family flew to London the following day.
There had been a glimmer of hope that Patrick had been found when it was thought he had checked in to an airport for the trip home, but his name was only triggered on the system as part of a block booking for the group he had travelled to London with.
Patrick’s body was found on the roof of a nearby fast-food restaurant the next evening.
It is believed he was killed in a fall.
His remains will be reposing at the family home in Kilnadeema, Co Galway, on Saturday from 2pm to 4pm and 6pm to 8pm.
There will be a private removal on Sunday for funeral Mass at 2.30pm in St Brendan's Cathedral, Loughrea.
His remains will be buried in Kilnadeema cemetery.