The police have re-opened a dormant investigation into a 2014 murder, believed to be a gangland vendetta, on the back of cooperation from self-confessed hitman Vincent Muscat.
Sources say investigators have identified a main suspect in the murder of Jonathan Pace, 31, of Żejtun, known as the operator of Tyson Butcher.
The breakthrough is understood to have come after Muscat, known as il-Koħħu, started cooperating with the police on a string of cold cases spanning several years.
The sources said the killing is being treated as a revenge crime for an attempted murder on Muscat a few months earlier.
Pace had been hit by five of 15 to 20 shots fired at him from an SUV. He was standing on the balcony of his house on a quiet residential street in Fgura when someone shot him with a fully-automatic assault rifle.