BBC: "An Islamic militant website has shown a video apparently showing the beheading of an American in Iraq.
The video showed five men in headscarves and ski masks cutting off the man's head with a knife.
Moments earlier the victim, bound and dressed in an orange jumpsuit, said he was an American from Philadelphia.
The group, thought to be linked to al-Qaeda, said it was carrying out the killing in retaliation for the abuse of Iraqi prisoners by US soldiers."

The brutality continues.