On May 11, 2004, the website of the militant Islamist group Muntada al-Ansar broadcast a video titled "Sheik Abu Musab al-Zarqawi slaughters an American infidel with his hands and promises Bush more", which shows American citizen Nick Berg being decapitated.
The web page, on a site located in Malaysia, was then immediately shut down.
It is unclear whether al-Zarqawi is one of the men in the video. Both al-Zarqawi and Muntada al-Ansar are associated with the Al-Qaida movement.
References
Muntada al-Ansar Wikipedia(Text) CC BY-SA