News and updates about Peter Kassig
France Identifies Second Beheading Participant
Mickael Dos Santos, who goes by the name of Abu Othman, identified as second Frenchman involved in Peter Kassig's beheading.
26-Year-Old Woman is ISIS's Last American Captive
US officials say ISIS's last US hostage is female aid worker, abducted in August 2013.
French ISIS Terrorist Involved in Kassig Beheading
France says jihadist citizen likely took part in beheading of US aid worker who converted to Islam, possibly another Frenchman too.
Kassig's Parents Heartbroken by His Death
Parents of aid worker beheaded by ISIS say they are proud of their son's humanitarian work.
Peter Kassig May Have Fought His ISIS Captors
Experts note stark differences to previous execution videos; speculate American aid worker, who was a former US Ranger, put up a fight.
ISIS Beheads Hostage Peter Kassig
Fifth Western hostage beheaded by Islamic State terrorists, video purportedly shows - even after he converted to Islam.
Parents of American Hostage Plead for His Release
Parents of Peter Kassig, an American aid worker held hostage by ISIS, appeal for his release in a statement and video message.