Guess what information about these three men we will find out (update)

Further to this I see that the Daily Mail has broken step and is reporting that:

"The men are of Asian origin and aged 21, 22 and 23, police said today."

The BBC report has not yet been updated to reflect this news. The facts that The Mail describes them as Asian and the BBC has not mentioned their background leads me to assume that the three men may well be - let's see, I may be wrong.