American journalist Steven Sotloff is pictured in this undated handout photo
U.S. journalist Steven Sotloff is pictured in this undated handout photo obtained by Reuters August 20, 2014. Islamic State insurgents released a video on August 19, 2014 purportedly showing the beheading of U.S. journalist James Foley, who had gone missing in Syria nearly two years ago, and images of Sotloff whose life they said depended on U.S. action in Iraq. REUTERS/The Daily Caller/Handout via Reuters (UNITED STATES - Tags: MEDIA POLITICS HEADSHOT CIVIL UNREST) ATTENTION EDITORS � THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. NO SALES. NO ARCHIVES. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS PICTURE WAS PROCESSED BY REUTERS TO ENHANCE QUALITY. AN UNPROCESSED VERSION HAS BEEN PROVIDED SEPARATELY
Ferguson Police Chief Jackson walks away from a media availability regarding his office's handling of the release of information following the shooting of Michael Brown in Ferguson
Ferguson Police Chief Thomas Jackson (R) walks away from a media availability regarding his office's handling of the release of information following the shooting of Michael Brown in Ferguson, Missouri August 15, 2014. Picture taken August 15, 2014. REUTERS/Lucas Jackson (UNITED STATES - Tags: CIVIL UNREST CRIME LAW POLITICS)
Ferguson Police Chief Jackson walks away from a media availability regarding his office's handling of the release of information following the shooting of Michael Brown in Ferguson
Ferguson Police Chief Thomas Jackson (C) walks away from a media availability regarding his office's handling of the release of information following the shooting of Michael Brown in Ferguson, Missouri August 15, 2014. Picture taken August 15, 2014. REUTERS/Lucas Jackson (UNITED STATES - Tags: CIVIL UNREST CRIME LAW POLITICS)
American journalist Steven Sotloff is pictured in this undated handout photo
U.S. journalist Steven Sotloff is pictured in this undated handout photo obtained by Reuters August 20, 2014. Islamic State insurgents released a video on August 19, 2014 purportedly showing the beheading of U.S. journalist James Foley, who had gone missing in Syria nearly two years ago, and images of Sotloff whose life they said depended on U.S. action in Iraq. REUTERS/The Daily Caller/Handout via Reuters (UNITED STATES - Tags: MEDIA POLITICS HEADSHOT CIVIL UNREST) ATTENTION EDITORS � THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. NO SALES. NO ARCHIVES. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS
American journalist Steven Sotloff is pictured in this undated handout photo
U.S. journalist Steven Sotloff is pictured in this undated handout photo obtained by Reuters August 20, 2014. Islamic State insurgents released a video on August 19, 2014 purportedly showing the beheading of U.S. journalist James Foley, who had gone missing in Syria nearly two years ago, and images of Sotloff whose life they said depended on U.S. action in Iraq. REUTERS/The Daily Caller/Handout via Reuters (UNITED STATES - Tags: MEDIA POLITICS HEADSHOT CIVIL UNREST) ATTENTION EDITORS � THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. NO SALES. NO ARCHIVES. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS
Ferguson Police Chief Jackson answers questions from the media about his office's handling of the release of information following the shooting of Michael Brown in Ferguson, Missouri
Ferguson Police Chief Thomas Jackson answers questions from the media about his office's handling of the release of information following the shooting of Michael Brown in Ferguson, Missouri August 15, 2014. Picture taken August 15, 2014. REUTERS/Lucas Jackson (UNITED STATES - Tags: CIVIL UNREST CRIME LAW POLITICS)
Police officer tells a journalist that he cannot ask any more questions as Ferguson Police Chief Jackson walks away from media availability regarding his office's handling of the release of information in Ferguson
A police officer tells a journalist that he cannot ask any more questions as Ferguson Police Chief Thomas Jackson (C) walks away from a media availability regarding his office's handling of the release of information following the shooting of Michael Brown in Ferguson, Missouri August 15, 2014. REUTERS/Lucas Jackson (UNITED STATES - Tags: CIVIL UNREST CRIME LAW POLITICS)
Ferguson Police Chief Jackson walks away from a media availability regarding his office's handling of the release of information following the shooting of Michael Brown in Ferguson
Ferguson Police Chief Thomas Jackson (C) walks away from a media availability regarding his office's handling of the release of information following the shooting of Michael Brown in Ferguson, Missouri August 15, 2014. Picture take August 15, 2014. REUTERS/Lucas Jackson (UNITED STATES - Tags: CIVIL UNREST CRIME LAW POLITICS)
Handout shows U.S. journalist James Foley speaking at Northwestern University's Medill School of Journalism, Media, Integrated Marketing Communications in Evanston, Illinois
U.S. journalist James Foley speaks at Northwestern University's Medill School of Journalism, Media, Integrated Marketing Communications in Evanston, Illinois, after being released from imprisonment in Libya, in this 2011 handout photo provided by Northwestern University. Islamic State militants have posted a video that purported to show the beheading of American journalist Foley in revenge for U.S. air strikes in Iraq. Foley, 40, was kidnapped on November 22, 2012, in northern Syria, according to GlobalPost. The video was posted after the U.S. resumed air strikes in Iraq in August 2014 for the first time since the end of the U.S. occupation in 2011. Foley had earlier been kidnapped and released in Libya. REUTERS/Tommy Giglio/Northwestern University/Handout via Reuters (UNITED STATES - Tags: POLITICS MEDIA OBITUARY CIVIL UNREST) ATTENTION EDITORS � THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. NO SALES. NO ARCHIVES. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS
Handout shows U.S. journalist James Foley speaking at Northwestern University's Medill School of Journalism, Media, Integrated Marketing Communications in Evanston, Illinois
U.S. journalist James Foley speaks at Northwestern University's Medill School of Journalism, Media, Integrated Marketing Communications in Evanston, Illinois, after being released from imprisonment in Libya, in this 2011 handout photo provided by Northwestern University. Islamic State militants have posted a video that purported to show the beheading of American journalist Foley in revenge for U.S. air strikes in Iraq. Foley, 40, was kidnapped on November 22, 2012, in northern Syria, according to GlobalPost. The video was posted after the U.S. resumed air strikes in Iraq in August 2014 for the first time since the end of the U.S. occupation in 2011. Foley had earlier been kidnapped and released in Libya. REUTERS/Tommy Giglio/Northwestern University/Handout via Reuters (UNITED STATES - Tags: POLITICS MEDIA OBITUARY CIVIL UNREST) ATTENTION EDITORS � THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. NO SALES. NO ARCHIVES. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS