Darwish shot and killed three Australian soldiers. An Afghan interpreter was also killed and seven Australian soldiers were wounded.
COMRADES of an Afghan soldier who shot and killed three Australian Diggers last year in an insider attack appear to have known in advance of their colleague's intentions.
An inquiry into the so-called ''green on blue'' attack in October 2011 at the Sorkh Bed patrol base in northern Kandahar province has found that the shooter was targeting Australians but appeared not to have any connection to the Taliban insurgency.
The finding came as a study concluded that a prime reason why Afghan soldiers act violently towards the Australians who are mentoring them is that they feel disrespected and believe violence is the only way to restore their honour.
Afghan Sergeant Darwish shot and killed Captain Bryce Duffy, 26, Corporal Ashley Birt, 22, and Lance Corporal Luke Gavin, 29. An Afghan interpreter was also killed and seven Australian soldiers were wounded.
Australian soldiers, some of whom were themselves wounded, immediately returned fire, killing Darwish.
Releasing the report Friday morning, the Vice Chief of the Defence Force, Air Marshal Mark Binskin, said that a close colleague of Darwish's had deserted several days before the shooting.
''There is evidence to suggest other individuals … were aware of his intent prior to the incident,'' the report states.
But there was no evidence any other soldier had ''actively supported'' Darwish. Air Marshal Binskin said the shooter's intentions might never be known.