andy moore has this report. >> reporter: he was a journalist drawn to war reporting.viously in libya, he was captured and held by militants for more than 40 days. >> then i was hit several times with an ak-47, punched and dragged into a vehicle with my hands tied behind my back. >> reporter: on a facebook site campaigning for his freedom, james foley's mother seemed to accept that her son was dead. she urged her kidnappers to spare the lives of the remaining hostages. the militants say they're taking revenge for recent american air strikes on islamic fighters in iraq. it is one of the few ways they can hit back. in a video too graphic to be shown, a man with a british accent is seen executing foley who went missing in syria two years ago. the executioner goes on to threaten that unless president obama stops attacking the islamic state, the life of another american hostage is at risk. the u.s. first authorized air strikes against the jihadi fighters earlier this month to protect refugees and stop the advance on kurdish areas. since then, they have been instrumental in