Another SAS soldier says he witnessed two Afghan prisoners willingly emerge from a tunnel before one with a prosthetic leg was led away by Ben Roberts-Smith and later executed.
It is a key event the war veteran denies occurred during an April 2009 mission dubbed Whiskey 108 in Uruzgan province.
The witness codenamed Person 40 told the Federal Court on Wednesday at the Taliban compound he saw Mr Roberts-Smith gathered with other troop members near a tunnel.
