The file type is a .gif file, which allows multiple still images to be looped in one file, with a timed delay between each image. The text of the first file reads “O Brothers in America, know that the jihad against the crusaders is not limited to the lands of the Khilafah, it is a world-wide jihad and their war is not just a war against the Islamic State, it is a war against Islam…Know that it is wajib (translated to “necessary”) for you to kill these kuffar! and now we have made it easy for you by giving you addresses, all you need to do is take the final step, so what are you waiting for? Kill them in their own lands, behead them in their own homes, stab them to death as they walk their streets thinking that they are safe…”

The file then loops several dozen photographs, purportedly of U.S. military personnel, along with their respective name, address and military branch. The final image looped is a picture of a handgun and a knife with text that reads “…and kill them wherever you find them…”