A teenager is still being held in connection with the death of a young man who was stabbed to death on March 19th.
David Byrne (19) died in the car park of the Emmet Court apartments in Inchicore, Dublin.
The teenager being held is one of three people who were arrested on Tuesday.
Fourteen people have been arrested in connection with the investigation to date.
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Gardaí believe Mr Byrne left his home at the Davitt House complex, Drimnagh, just after 10pm.
He was chased by a gang into the Emmet Court complex and stabbed several times by one of the gang while accomplices kept a lookout.
When gardaí and paramedics arrived Mr Byrne was still alive, but he was later pronounced dead at St James’s Hospital.