Seven people have denied murdering the 20-year-old on New Year's Day 2014
The jury in the trial of seven people accused of beating a man to death on a footbridge in Dublin has heard he was also stabbed.
Deputy state pathologist Michael Curtis has been giving evidence of the postmortem he carried out on Dale Creighton following his death in 2014.
Dr Curtis told jurors that Mr Creighton had a broken nose, dislocated thumb and was covered in cuts and bruises.
An internal examination revealed a fractured skull, more bruising, swelling on the brain and a small amount of bleeding inside the skull.
Dr Curtis said the 20-year-old also had a stab wound on the back of his right thigh. He said it was an unusual shape, like a rugby ball, which suggests it was caused by an implement other than the blade of knife.
He said there was a modest level of alcohol and some cocaine found in his system, and concluded the cause of death was a result of blunt force trauma to the head and face.
Seven people, including a brother and sister, have denied murdering Dale Creighton on a footbridge over the Tallaght bypass in the early hours of New Year's Day 2014.
The prosecution believes he was attacked over a stolen mobile phone.