Mr Glees, the director the Centre for Security and Intelligence Studies at Buckingham University, suggested the terrorist is likely to have studied at a London based university, and possibly could have completed studies in engineering or IT.
Mr Glees told MailOnline: 'I have no doubt whatsoever that the identity of this person will very soon uncovered. Everybody leaves a trail.
'MI5 know who this person is. They will be checking out where they studied, who they came into contact with, and crucially, who else was in their network.
'There are a stream of Islamist terrorists who come from higher education in the UK that are graduates, who are over represented in terrorist ranks.
This gives you an indication of the sort of people they are, they are not homeless refugees, or unemployed, they are well educated, highly motivated, ideological fanatics, that are highly dangerous.
'This is a very significant development. It is very likely that this person would have been radicalised in the UK, or Australia.
'He may have had no personal contact with the fighting in ISIS in Syria or Iraq.
'Massive warning lights have to flash here. We can't assume this person was a jihadist from the battlefields.'
Mr Glees suggested he would have become radicalised after coming into contact with a radical preacher 'a band of brothers or sisters' that would have taken the form of 'campus associations.' “
Very worrying.