I spotted an initial report over the weekend IIRC, now NYT has a fuller account, entitled 'U.S. Drone Strike Kills Foreign Commander Fighting for Militants in Somalia':http://www.nytimes.com/2012/01/23/wo..._r=1&ref=world

Taken from the report: Bilal al-Barjawi was of Lebanese origin, who had been a UK citizen till it was revoked ayear ago, his wife and children remain in London and:
joining them (Al-Shabab) in mid-2006 after having fought in Afghanistan.
We've heard of ethnic Somalis returning from the USA and Europe, suggestions that other groups, notably AQ, have links with Al-Shabaab, but nothing IIRC like this - an experienced fighter who was Arab by birth, British by nationality. Now what made him take the violent Jihad route?