Something tells me that if he was a senior in AQ, he wouldn't be truckin' bombs around, and leaving cell-phone breadcrumbs behind. More likely an expendable resource job, or complete amatuer.
Just my take. Debka, hrrrmmmpphh, yea right!
Yup.
(London) Terror Suspects Very Probably Amateur, Says Italian Police
There's something here, but I don't read "senior" into it. The guy changed the ID chip in his cell phone and he probably had false paperwork that he used to get out of Britain, possibly even in disguise.
Debka's worthless, but the signs point to basic or advanced AQ training.