A 17-year-old who gardai believe was involved in a vicious knife attack on a man in a south inner-city flats complex remained in garda custody last night while a manhunt continued for a thug who is considered the ringleader behind the brutal daylight assault.
The savage stab attack on a balcony in the Basin Street flats at 6.35pm on Sunday was videoed on a mobile phone and posted on social media apps.
The victim was still being treated at St James's Hospital last night after undergoing surgery yesterday.
He was stabbed multiple times in the brutal incident which gardai say is linked to a drugs debt he allegedly owed for crack cocaine.
The teenage suspect, who was arrested in a separate flats complex in the south inner-city yesterday, is a close associate of criminal Philip Finnegan who was brutally stabbed to death in August 2016.
The 30-year-old who gardai believe is the man behind the latest attack is from the Bluebell area and has numerous previous convictions, including for possession of knives.
He was previously jailed for the reckless endangerment of a child in relation to a terrifying incident which happened when the criminal was only a juvenile himself.
Both suspects are considered "bully-boy enforcers" in the prolific street-level drugs scene in the St James's Street area in which several flat complexes are blighted by drug abuse.
"This attack was probably filmed to send out a message to other lads that may owe their gang money," a senior source said last night.
"Obviously, because they filmed it the suspects have been identified and it is only a matter of time before the second older suspect is picked up.
"The victim - who suffers from huge drugs problems himself - was stabbed multiple times but his injuries are not life threatening.
"This seems to have happened because of a debt over two bags of crack cocaine worth €50 each," the source added.
Gardai are examining the shocking video footage to find the culprits.
The brutal attack on the balcony of one of the Basin Street flats in Dublin 8 occurred at 6.35pm on Sunday. The footage was apparently recorded by an associate of the attacker.
It begins with the group walking up the steps onto a balcony and then cuts to them having a conversation with a young man in a black tracksuit.
The conversation centres around drugs and money.
"You owe me for two yokes," one of the men says.
Then suddenly one of the gang launches at the man in the black tracksuit with what looks like a large hunting knife and starts to stab him.
He pushes him back into a corner at the end of the balcony and continues to stab at him repeatedly while the victim tries to defend himself.
All the while the attack is taking place a voice behind the camera can be heard shouting "You dirty rat" and "coward", and urges the attacker to continue.
Towards the end of the video the victim can be seen bleeding from the head and crouching on the balcony.
The voice behind the camera urges the attacker, dressed in a camouflage jacket and with his head clearly visible, to stop and escape, reminding him that he is on camera.
The attacker is then seen trying to get around a garden chair on the balcony, and placing his bloodstained hand on it as he gets past it.