Kayla Mueller was not killed in a raid by coalition Washington

The White House confirmed the death of the American hostage Kayla Mueller, but denies she was killed in a raid by the international coalition, as claimed by the Islamic State Group (EI). Washington says it has evidence that no civilians were in the area covered last week by the Jordanian aviation.

In an interview to the website of Buzzfeed reports, President Obama said he was upset by the death of the young humanitarian. He also reminded why America did not pay ransom to free hostages: 'By paying not only we support the killing of innocent people and strengthen the Islamic state group he said, but we actually transform Americans much more interesting targets for future abductions. "

Kayla Mueller was kidnapped in August 2013 in Syria, while working for a Turkish NGO. She was born in Prescott, Arizona. His family paid tribute to his dedication: 'Kayla called to help those who suffer, whether in his hometown or anywhere else in the world, said his aunt. She did more in his incredible 26 years than many people can imagine achieve in their lives. ''

Kayla Mueller was the fourth American hostage killed in the hands of the Islamic state group. Previously, two journalists and humanitarian had been beheaded by their captors.