The young American hostage who Islamic State says was killed in a Jordanian air strike was condemned to death by the militant group last year, according to an American Muslim activist.
Islamic State seized aid worker Kayla Mueller in 2013 in northern Syria and initially gave her a "life sentence" in retaliation for the jailing in Texas of a Pakistani woman whose case is a well-known cause among Islamist militants, said activist Mauri Saalakhan, who leads a U.S. campaign to free the Pakistani.
The militant group said on Friday that Mueller, a 26-year-old from Prescott, Arizona, was killed when Jordanian fighter jets bombed a building where she was being held. Jordan expressed doubt about the claim and U.S. authorities said they could not confirm it.
Mueller's family had long asked U.S. officials, aid groups and media outlets, including Reuters, not to use her name for fear the publicity could induce Islamic State to harm her. After Islamic State's claim on Friday, Mueller's parents issued a public statement on Friday night, identifying their daughter by name and saying they remained hopeful she was still alive.
Mueller's family has not given details of any communication with the militant group and Saalakhan's information could not be verified by Reuters.
Saalakhan said that last summer, as Islamic State extended its control over parts of Iraq and Syria, the group threatened to kill Mueller. Saalakhan first mentioned the "sentencing" of Mueller in an open letter to the group he released last year.
On July 12, militants told Mueller's family she would be executed in 30 days if Pakistani neuroscientist Aafia Siddiqui was not released or the American's family did not pay a ransom of 5 million euros ($6.6 million), he said.
The information about the threats came from a representative of Mueller's family, Saalakhan said.
Islamic State apparently did not carry out its death sentence after Saalakhan and an Arizona pastor wrote open letters to the group. Siddiqui's family rejected Islamic State's attempt to link the two cases and said it did not want Mueller to suffer.
"I believe that the messages that went out after that threat was conveyed, both from Aafia's family and from us, I do believe those messages made their way to ISIS," said Saalakhan.
Mueller's family had a communications pipeline to the militant group, Saalakhan said, without elaborating.
Siddiqui is serving 86 years in a prison medical center in Texas. A jury convicted her in 2010 of attempting to shoot and kill a group of FBI agents, U.S. soldiers and interpreters who were about to interrogate her in Afghanistan for alleged links to al Qaida.
The White House has refused to negotiate for the release of hostages or pay ransoms demanded by Islamic State.
Mueller was seized while leaving a Doctors Without Borders hospital in the northern Syrian city of Aleppo in August 2013. She had a record of volunteering abroad and was moved by the plight of civilians in Syria's civil war.
She had worked for a Turkish aid organization on the Syrian border and volunteered for schools and aid organizations abroad including in both the West Bank and Israel as well as in Dharamsala, India, where she taught English to Tibetan refugees.
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