Ive seen a fair bit of this inquiry; it's streamed daily on youtube. Ive no doubt this kid has some significant guilt and wrongly so in my opinion. If he had approached Abedi the likelihood is he would be dead now as he wouldve detonated there and then. He was never going to allow himself to be arrested and at this point was already in a crowded foyer.

However this whole didnt want to be deemed a racist is a little convenient IMO and is naturally a dream of a headline for a newspaper.

The security guard mentioned made multiple vivid statements in the aftermath where he significantly reduced the time between being alerted to Abedi's presence and detonation of the bomb. He indicated that he had seen the bomb go off but hadn't. He suggested that there was mere seconds between him being informed of Abedi's position and detonation. The truth was that after not being able to originally get through on the radio he left the area and went some 200 yards away and remained there until his detonation which was
5/6 minutes later. He's on CCTV being relatively in his words "care-free / in a good mood" and 'pretending to be an aeroplane' as he approached his mate/colleague.

Without doubt there are some significant failings and the fact Abedi was allowed to hang around in an at times deserted area without questioning; despite being unable to walk properly due to the weight of his bomb. But these can't be placed on a kid alone who clearly didnt have sufficient training. That doesnt mean his claim that the reason he didnt do anything because he didnt want to be seen as a racist is true though.