There will, inevitably, be speculation. There is, regrettably, a public appetite for a degree of immediacy and detail which encourages such speculation. It's therefore better that any speculation there is should be informed.
Moreover, as soon as it's known whether this was a J or a K one half of the Lyneham families will be able to breathe again - however sadly.
Though I'm a journo, I'm not speculating, just making a comment.