Indeed.
He was 18, so inexperienced at this. I wonder what training he had, if any? He must have had grounds for doubt about Abedi's behaviour otherwise he surely wouldn't have thought the way he did. Did anyone else in security see Abedi? Did they have similar doubts? I'd also find it slightly alarming if this relatively inexperienced youngster was on his own monitoring an area.
There are undoubtedly other questions to come out of this. Sadly, that utter wankstain Farage has come out and wrongly said it was an example of political correctness. What an opportunist dickhead he really is.