Cordeaux Heights man Robert Nikolovski has been found guilty of orchestrating the April 2012 "revenge" killing of ex-Comanchero bikie Darko Janceski.

A Supreme Court jury returned a majority verdict (11-1) on an accessory before the fact to murder charge on Friday morning after a week of deliberations.

In the two week trial, jurors heard evidence from several witnesses that Nikolovski believed Janceski was responsible for the disappearance and suspected murder of his brother, Goran Nikolovski, in late October 2011.

It was alleged Nikolovski organised for one of his brother's close friends, Matthew Paul Wiggins, to shoot Janceski outside his parents Berkeley home five months later.

Wiggins has since been found guilty of murder.

Meantime, a series of telephone calls intercepted by police reveal Nikolovski made numerous threats against Janceski's life in the days and weeks after Goran went missing, including that he could "kill him with my bare hands".

Nikolovski has admitted making the threats in the phone calls but denied he had masterminded the killing, with his lawyers saying they were simply the ramblings of a heartbroken brother.

His lawyers argued the phone calls showed that Nikolovski was being "sidelined" in the search for his brother by Goran's close friends, who included high ranking members of the Comancheros.

However, jurors intimately failed to believe the defence case.

More to come