British aid worker Margaret Hassan may have been killed by hostage-takers, her Iraqi husband said on Tuesday, citing a video tape that had surfaced. He was told that there was a video of Margaret which appears to show her murder. "The video may be genuine but I do not know," Tahsin Hassan said. The video is "probably genuine", a spokeswoman at the British Eembassy in Baghdad said on Tuesday. Dublin-born Margaret Hassan, who had British and Iraqi nationality and had lived in Baghdad for some 30 years, was seized on October 19 while on her way to work at Care International, the charity where she was country director.