The Islamic State posted a message on JustPasteIt, an anonymous message board, declaring war on anti-Muslim activist Pamela Geller, the New York Daily News' Jason Silverstein reports.
On Monday, ISIS claimed responsibility for the failed attack in Garland, Texas over the weekend. If true, that would be the first time ISIS has launched an attack on American soil. In the letter posted on Tuesday, it claimed that its "aim was the khanzeer [swine] Pamela Geller and to show her that we don't care what land she hides in or what sky shields her, we will send all our Lions to achieve her slaughter."
The authenticity of the letter -- as well as ISIS's claim to be responsible for the Sunday attack -- has not been confirmed by independent sources, and at the time of this writing, the Federal Bureau of Investigation has not commented.
On her website, Geller responded to the threats, writing that all that "remains to be seen is whether the free world will finally wake up and stand for the freedom of speech, or instead kowtow to this evil and continue to denounce me."
She expressed grave disappointment in media figures like Donald Trump and Bill O'Reilly, both of whom criticized her harshly for "provoking" and "inciting" the attack in Garland. They are, she wrote, "essentially allying with and even cheering on the Islamic State." She told BBC News that those who levy such criticisms are akin to people who say "the pretty girl was responsible for her own rape."
The Tuesday letter claimed that ISIS had "71 trained soldiers in 15 different states ready at our word to attack," and claimed that any actions undertaken by them would be "only the beginning of our efforts to establish a wiliyah [authority] in the heart of our enemy."
It also boasted that Sunday's attack was designed to fail. "We knew that the target [Geller] was protected," it stated. "Our intention was to show how easy we give our lives for the Sake of Allah...The disbelievers who shot our brothers think that you killed someone untrained, nay, they gave you their bodies in plain view because we were watching."