This chilling image is the first look at innocent father-of-three Trevor O'Neill's killer.
These pictures show a heavily disguised gunman approaching the Dubliner before murdering him in front of his family in the resort of Costa de la Calma last August 17.
Less than 30 seconds later the hitman is caught on the same store CCTV camera fleeing the scene, having gunned down Mr O'Neill (40), who was from Drimnagh.
The images, aired on RTE's Prime Time programme, show the gangland hitman running past a nearby store as locals shop inside, oblivious to the execution that had taken place metres away.
Spanish police have vowed to bring the killer to justice, despite the fact that no arrests have been made in the murder investigation.
The gunman is believed to have carried out the hit on behalf of the Kinahan cartel.
Mr O'Neill, a Dublin City Council worker, was shot in a case of mistaken identity.
It is believed that Jonathan Hutch, a nephew of 'The Monk', was standing beside the victim when he was shot dead.
Gardai believe that the Hutch family member was the intended target of the fatal shooting.
Despite being a target of the deadly gang, Jonathan Hutch is not involved in criminality.
The Kinahan gang was responsible for the killing of his brother Gareth Hutch (35) in May; his uncle Edward Hutch (59) in February; and his cousin Gary Hutch (34) last September.
A Guardia Civil officer, speaking on the condition of anonymity, told the RTE programme that Spanish police are intent on dismantling the cartel.
They are investigating the Kinahan cartel for a number of crimes from murder to money-laundering.
"The Kinahan clan has been settled on the Costa Del Sol for a number of years and they are one of the most relevant and dangerous criminal organisation operating in Europe.
"They are mostly integrated and made-up of Irish, British and Spanish citizens and they are involved in drug trafficking, arms trafficking and money laundering among other criminal activities," he said.
The police officer also described how Spanish authorities have been working closely with An Garda Siochana to bring down the deadly gang.
"Ireland has provided a lot of intelligence about these criminals and we have obtained good information in Spain in order to complete a full picture of the gangs," he said.
"Our commitment with the rest of the national and international partners is total, to completely dismantle this international gang.
"We believe this is the right way to crush this menace and La Guardia Civil is absolutely determined to do it."
An eye-witness to Mr O'Neill's murder recalled how she held his hand as he lay dying in the street while his children took refuge inside her premises.
"I saw the gunman walk past the shop and heard the shots seconds later. He ran back down the road past the shop towards the beach and a well-known beach bar," she said.
"He had tracksuit bottoms on and a blue tracksuit top with the number 23 in white on the back and the hood on his tracksuit drawn up tightly round his face.
"You couldn't really see anything of him because he was so covered up. It was pandemonium at first. People were screaming and running in all directions.
"The wife of the man that was shot had one of their children who must have been aged around seven in a pushchair that she was wheeling along when the victim was gunned down," the woman said.
Investigators are looking to see if a senior member of the Kinahan cartel, who is a suspect in two feud murders, was involved in Mr O'Neill's murder.
The north Dublin mobster had travelled to Spain from Britain just days before Mr O'Neill was shot.
Mr O'Neill was the second innocent man gunned down in a case of mistaken identity by the Kinahan cartel.
In April, father-of-three Martin O'Rourke (24) was shot dead outside a pub in the north-inner city. So far 10 people have been killed as part of the Hutch/Kinahan feud.