A former SAS soldier told Ben Roberts-Smith’s defamation trial yesterday that he saw his former brother-in-arms kick an unarmed and handcuffed Afghan man off a cliff. He said the Victoria Cross recipient then coached his fellow soldiers on what to say about the man’s death. To recap: Roberts-Smith says reports published in 2018 by Nine Newspapers and former stablemate the Canberra Times are defamatory because they claim he committed war crimes. He denies that accusation. But the former soldier identified as ‘Person 4’ yesterday said the Afghan man did go over the edge thanks to Roberts-Smith. The man was then shot dead, but Person 4 didn’t see who pulled the trigger. Under the rules of engagement that guided Australian troops in Afghanistan, what has been described constitutes murder. For Roberts-Smith’s part, he says the Afghan man was first seen in a field and showed “hostile intent”. The trial continues…