(FILES) This file photo taken on April 17, 2013 shows Clement Meric (C), a student at Paris' prestigious Institute of Political Science (Sciences Po) and a left-wing activist, wearing a bandana over his face as he holds a banner reading "Homophobia kills" and faces riot policemen while supporters of the anti-gay marriage movement "La Manif Pour Tous" (Demonstration for all!) demonstrate, a few hours after the second reading of France's landmark bill allowing gay marriage at the French National Assembly. The French court has referred to the Assize Court four skinheads involved in the fight which claimed the life of Clement Meric, 18, a left-wing French activist who died on June 6, 2013 in Paris, it was announced on July 7, 2016. / AFP PHOTO / JACQUES DEMARTHONJACQUES DEMARTHON/AFP/Getty Images

(FILES) This file photo taken on April 17, 2013 shows Clement Meric (C), a student at Paris' prestigious Institute of Political Science (Sciences Po) and a left-wing activist, wearing a bandana over his face as he holds a banner reading "Homophobia kills" and faces riot policemen while supporters of the anti-gay marriage movement "La Manif Pour Tous" (Demonstration for all!) demonstrate, a few hours after the second reading of France's landmark bill allowing gay marriage at the French National Assembly. The French court has referred to the Assize Court four skinheads involved in the fight which claimed the life of Clement Meric, 18, a left-wing French activist who died on June 6, 2013 in Paris, it was announced on July 7, 2016. / AFP PHOTO / JACQUES DEMARTHONJACQUES DEMARTHON/AFP/Getty Images

SUN VALLEY, ID - JULY 6: ( L to R) Sebastian Thrun, founder of Udacity and GoogleX, walks with Jeff Bezos, chief executive officer of Amazon.com Inc. and founder of Blue Origin, as they attend the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 6: Penny Pritzker, U.S. Secretary of Commerce, attends the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 6: (L to R) Maria 'Mel' Lagomasino, chief executive officer of financial advisory firm WE Family Offices, Warren Buffett, chairman and chief executive officer of Berkshire Hathaway Inc., and Susan Alice Buffett, philanthropist and daughter of Warren Buffett, speak with each other as they attend the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 6: ( L to R) Sebastian Thrun, founder of Udacity and GoogleX, walks with Jeff Bezos, chief executive officer of Amazon.com Inc. and founder of Blue Origin, as they attend the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 6: ( L to R) Sebastian Thrun, founder of Udacity and GoogleX, walks with Jeff Bezos, chief executive officer of Amazon.com Inc. and founder of Blue Origin, as they attend the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 6: (L to R) Maria 'Mel' Lagomasino, chief executive officer of financial advisory firm WE Family Offices, Warren Buffett, chairman and chief executive officer of Berkshire Hathaway Inc., and Susan Alice Buffett, philanthropist and daughter of Warren Buffett, speak with each other as they attend the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)