Police investigating two Illawarra slayings and a suspicious disappearance say a renewed appeal for information has already yielded good results.
Strike Force Calligan detectives yesterday urged the public to come forward with information about the shooting deaths of Saso Ristevski and Darko Janceski, and the disappearance of Goran Nikolovski.
Lead investigator Detective Inspector Dave Laidlaw said a number of people had contacted police as a result of their appeal.
"There has been information provided that has confirmed a number of lines of inquiry," he said. Det Insp Laidlaw confirmed the three matters were drug-related and linked to organised crime.
Saso Ristevski, 37, was shot dead at his parents' home in Barina Avenue, Lake Heights, about 8.30pm on September 28 last year.
A witness spotted the offenders running from the scene shortly after hearing the fatal gunshot. Just one month later, on the evening of October 31, 35-year-old Goran Nikolovski was last seen driving away from his Unanderra home.
Nikolovski's burnt-out car was later found at Macquarie Pass but he has not been seen or heard from since.
Only days later, Darko Janceski's home on Barnes Street, Berkeley, was destroyed in a firebomb attack.
Then, on the afternoon of Saturday, April 14 this year, the 32-year-old was shot a number of times in the front yard of his parent's home at Gannet Avenue, Berkeley, by a male on a trail bike. He died a short time later.
Detectives believe the three incidents are linked and have combined the investigations under one strike force.
Anyone with information is urged to contact CrimeStoppers on 1800 333 000 or use the Crime Stoppers online reporting page. Information provided will be treated in strictest confidence.