Did the "Religion of Peace" Strike Again?

Much is unknown at this point, but let's put some tentative pieces together...

1) Non-Muslim woman is beheaded in north London neighborhood
2) North London neighborhoods are known to have high concentration of Muslims
3) British Muslims are known to join jihadist groups and make terroristic threats against Britain
4) We know that beheadings are a calling card tactic of jihadist terrorists

So naturally, the authorities that be have been quick to announce that there is no reason to suspect terrorism as a motive. 

Of course not.