A former SAS soldier denies making up evidence that Ben Roberts-Smith expressed a desire to just "kill" or seeing photographs of dead insurgents on his iPod.
The ex-special forces soldier codenamed Person Two returned to the Federal Court witness box on Thursday after detailing his deployment with the former SAS corporal's squadron into Afghanistan in 2006.
He said on Wednesday that Mr Roberts-Smith expressed an alleged bloodlust while the pair were posted together in a "big bunker area" on picket duty.
