I'm pretty sure everyone has got a theory on the recent bombing but I'm just
wondering if there is a pattern and maybe someone can confirm if the
following could be true.

I understand the bomb executed on the Piccadilly Line was at the front of
the train - does anyone know if the Heathrow bound platform at KC is the one
closest to the Northern Line escalator? If that is the case the bomber must
have entered the platform from the main Kings Cross escalators and
immediately onto the platform, from there he entered a waiting train and
must have escaped as the doors were closing and exited the platform by
taking the short link onto the Northern Line escalator.

Were all the bombs planted within the door ways that were adjacent to the
platform entrances at Euston Square for the Edgware Road train, King's Cross
for the Liverpool Street train and finally is the Kings Cross Piccadilly
line entrance adjacent to the front of the train?