The trial has opened in the Central Criminal Court of a 17-year-old youth accused of murdering another teenager in October 2002.
The victim, who was 17 and from Donaghmede in Dublin, was stabbed three times and died in hospital within hours of the attack which took place outside a cinema complex in Coolock.
The accused, who is still defined as a child in law, has denied murder and a second charge of robbery of the victim's mobile phone, wallet and a sum of money.
A jury in the Central Criminal Court heard this morning how the victim had met his girlfriend at the Omniplex complex in Coolock and spent the night playing video games.
When he left to get the last bus home, he was attacked, robbed of his phone and money and stabbed three times. He stumbled back to the cinema complex, collapsed and died in hospital a few hours later.
The juvenile accused of his murder was 15 years old at the time.
Outlining the prosecution case to the jury today, Brendan Grehan said the accused and two others had engaged in a night of robbery before the fatal attack on the victim.
There was no conceivable justification, he said, for what they accused had done to the victim.
