GEORGE BIZOS
Well why not?  You had suffered some disadvantage as a result of your request by your friend to supply the gun.  You were detained and you had to make a public admission that you had in your possession a stolen and unlicensed firearm, why didn't you confront him, "why did you take this gun from me, used it for the murder of Mr Hani without telling me the true purpose for which you intended the gun to be used"?