SPC Maupin

2246 GMT - Al Jazeera television has aired a videotape of Army Spc. Matt Maupin being executed by Islamist militants in Iraq. In the video, Maupin was shot multiple times in the head and chest and then dropped into a grave. Maupin has been missing since April 9 when his convoy was attacked near Baghdad. U.S. officials have not confirmed Maupin's death.