A frame grab from a video released by the Islamic State shows an IS militant holding a knife before purportedly executing British aid worker David Cawthorne Haines. Islamic State Video/EPA /LANDOV hide caption
hostages
Sunday
Sunday
A man in Kano, Nigeria, reads a local newspaper Sunday that carries a story about the killing of seven hostages by a militant group. Sunday Alamba/AP hide caption
Friday
Thursday night in Midland City, Ala., there was a candlelight vigil for bus driver Charles Poland, who was killed Tuesday before a gunman snatched a 5-year-old boy — who is being held captive in an underground bunker. Philip Sears/Reuters /Landov hide caption
Wednesday
Islamist militants raided the In Amenas natural gas field (pictured) in Algeria on Wednesday and took several hostages. BP/AP hide caption