Kayla Mueller was a 26-year-old aid worker from Prescott, Arizona. She was not a thrill-seeker. She was the kind of person drawn toward suffering with a medical bag and a stubborn belief that people ...

The US Intelligence Community believes that American hostage Kayla Mueller was given as a bride to a fighter with the Islamic State of Iraq and Syria, or ISIS, during her captivity, CBS News has ...

ISIS had said on Friday, February 6, that 26-year-old Kayla Mueller had been killed in an airstrike by Jordan against the sect. ISIS had said on Friday, February 6, that 26-year-old Mueller had been ...

The family of the Arizona woman who Islamic militants claim was killed in a Jordanian airstrike is hoping she is still alive. Kayla Jean Mueller's parents are not speaking to reporters, but issued a ...

ISIS said in February that Mueller, of Prescott, Arizona, was killed when Jordanian fighter jets bombed a building where she was being held outside Raqqa, a stronghold in Syria of the Islamist ...

Kayla Mueller's parents said in an exclusive interview with “Today” that despite fearing for their daughter's safety in captivity at the hands of ISIS, they were holding out hope for a reunion because ...

Friends and family of slain ISIS hostage Kayla Mueller memorialized her at a tearful news conference in her Arizona hometown on Tuesday, just hours after her family released a statement saying the ...

The father of Kayla Mueller, an an American woman killed while being held captive by ISIS, read a moving letter at his daughter's hometown memorial service Saturday, recounting her discovery that her ...

PRESCOTT, AZ -- The father of an international aid worker killed while being held captive by Islamic State militants read a moving letter at his daughter's hometown memorial service Saturday, ...