(01 of12)
Open Image ModalIn this file image made from a video released Sunday, Feb. 15, 2015 by militants in Libya claiming loyalty to the Islamic State group purportedly shows Egyptian Coptic Christians in orange jumpsuits being led along a beach, each accompanied by a masked militant. (credit:ASSOCIATED PRESS)
(02 of12)
Open Image ModalUS aid worker Kayla Mueller, who died as a hostage of Islamic State (IS) group jihadists
Mideast Jordan Japan Islamic State(03 of12)
Open Image ModalA poster with a picture of Jordanian pilot, Lt. Muath al-Kaseasbeh, who is held by Islamic State group militants, and Arabic that reads "we are all Muath," hangs on a street pole, in front of the captured pilot's tribal gathering place, in Amman, Jordan, Thursday, Jan. 29 2015. A sunset deadline was approaching Thursday in the Middle East for Jordan to release an Iraqi prisoner or face the death of a captured Jordanian air force pilot, according to the latest threat purportedly issued by the Islamic State group. (AP Photo/Nasser Nasser) (credit:ASSOCIATED PRESS)
Japanese hostage Kenji Goto Jogo captured by ISIL(04 of12)
Open Image ModalALEPPO, SYRIA - JANUARY 29 : A frame grab taken from a footage on October 24, 2014, shows Japanese journalist Kenji Goto Jogo, one of two Japanese hostages captured by Islamic State of Iraq and Levant (ISIL), gives an interview in northern Mari district of Aleppo, Syria. (Photo by Huseyin Nasir / Anadolu Agency /Getty Images) (credit:Anadolu Agency via Getty Images)
(05 of12)
Open Image ModalHaruna Yukawa, a Japanese national beheaded by members of the Islamic State
(06 of12)
Open Image ModalA Russian man identified as 30-year-old Sergei Ashimov.
(07 of12)
Open Image ModalA man identified as Dzhambulat Mamaev aged 38 and says he is a Kazakh national appears in an ISIS video
(08 of12)
Open Image Modaleter Kassig stands in front of a truck filled with supplies for Syrian refugees. The Indianapolis, Indiana, aid worker being held by the Islamic State group told family and teachers that heâd found his calling in 2012 when he decided to stay in the Middle East instead of returning to college, according to an email released Tuesday, Oct. 14, 2014 by his family. (AP Photo/Courtesy Kassig Family, File) (credit:ASSOCIATED PRESS)
(09 of12)
Open Image ModalBritish aid worker Alan Henning
(10 of12)
Open Image ModalIslamic State extremists release a video showing the beheading of British aid worker David Haines (pictured)
File Photo Of US Journalist Steven Sotloff Held Hostage By Extremists(11 of12)
Open Image ModalMISRATA, LIBYA - JUNE 02: In this handout image made available by the photographer American journalist Steven Sotloff (Center with black helmet) talks to Libyan rebels on the Al Dafniya front line, 25 km west of Misrata on June 02, 2011 in Misrata, Libya. Sotloff was kidnapped in August 2013 near Aleppo, Syria and was recently shown on a jihadist video in which fellow US journalist James Foley was executed. In the video the militant form the Islamic State (IS) threatens to kill Sotloff next if the US continues its aerial campaign against the insurgency. (Photo by Etienne de Malglaive via Getty Images) (credit:Handout via Getty Images)
Top Stories New Hampshire(12 of12)
Open Image ModalFILE - In this May 27, 2011 file photo, American journalist James Foley, of Rochester, N.H., poses for a photo in Boston. The murder of Foley by Islamic militants was one of New Hampshire's top stories for 2014. (AP Photo/Steven Senne, File) (credit:ASSOCIATED PRESS)