The Harry Potter creator took to the social media platform to express her horror at the news of Rushdie being punched and stabbed on stage before he was set to lecture on free speech in New York. She wrote, "Horrifying news. Feeling very sick right now. Let him be ok."
Meer Asif Aziz, who identifies in his Twitter bio as a "student, social activist, political activist and research activist" from Pakistan, replied, "Don't worry, you are next."
Rowling publicly asked Twitter to intervene, requesting the support team, "Any chance of some support?" She also reported the threat.
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Nevertheless, she received an email from Twitter stating that Aziz — who once described the man arrested for Rushdie's attack, Hadi Matar, as a "revolutionary Shia fighter" — did not violate the community guidelines.
Rowling confirmed the police were involved, telling followers: "To all sending supportive messages: thank you. Police are involved (were already involved on other threats)."
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The author is no stranger to online harassment and has met some extreme words and threats from some transgender activists for Rowling's opinions on biological sex.
Rushdie had been issued with a fatwa – a call for assassination – by Iranian authorities in 1989, after the release of his controversial novel The Satanic Verses. Iranian officials deemed the work "blasphemous."
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Mata, Rushdie's attacker, pleaded not guilty to second-degree attempted murder and assault charges after supposedly stabbing the writer at least ten times, hospitalizing him, CNN reported Saturday.
Rushdie's agent revealed Friday the author is presently on a ventilator, seems to be in danger of losing the use of an eye, has suffered nerve damage to his arm, and has suffered harm to his liver.
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According to an archive of his account, Aziz formerly tweeted regarding his desire to destroy Israel and branded the Jewish state, Ukraine, and India as "terrorist states."
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He seemed to be a backer of Iran's Supreme Leader Ayatollah Ali Khamenei. "Dear leader, your struggle for the Islamic world will not be wasted until we young generation is with you," Aziz wrote in reply to a Khamenei tweet.
Rushdie was in serious condition and on a ventilator following the stabbing attack at a literary event in New York state Friday.
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He had been living under an effective death sentence since 1989, when Iran's then-supreme leader Ayatollah Ruhollah Khomeini issued a religious decree, or fatwa, ordering Muslims to murder the writer.