Terror case dealt blow when key witness sets himself afire By MICHAEL WEISSENSTEIN Associated Press Writer November 16, 2004, 5:30 PM EST NEW YORK -- The prosecution of a sheik accused of funneling millions of dollars to al-Qaida was roiled Tuesday by news that a man who set himself on fire in front of the White House was a key witness in the case. Defense attorneys said Mohamed Alanssi is a confidential informant central to the prosecution of Sheik Ali Hassan al-Moayad, whom U.S. authorities consider their biggest catch to date in a campaign to cut off funding for terrorists....