The man who allegedly stabbed Sir David Amess to death was a British national, it has been claimed.

Counter terror officers are tonight examining his phone.

They are keen to establish if there is a terror link.

His phone records will reveal who he called and when.

Crucially, it may reveal incriminating texts and any foreign contacts.

It will also reveal his movements during the hours before the attack.

They will be keen to find out if he was a follower of any terror groups in the U.K. or abroad.

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