When the gaffer was asking them all if they have raped her or if they have seen anything harley hesitated as he looked at bruno and then harley said no i didnt see anything so i think that it will have been bruno and harley would have seen him then bruno would of threatened harley not to say nothing. then at the end wen harley said to shannon i didnt tell you everything i think he might confess to her that he saw bruno rape that girl! thats what i think anyway!