INDIANAPOLIS (AP) — Family members of a U.S. aid worker purportedly beheaded by Islamic State group militants say they are aware of reports regarding the death of their "treasured son" but are awaiting government authentication.
Peter Kassig's parents also requested in a statement Sunday that their family's privacy be respected.
The Islamic State group released a graphic video Sunday in which a black-clad militant claims to have beheaded Kassig, who was captured last year.
The video posted on websites used by the group in the past appeared to be the latest in a series of grisly messages to the U.S. warning of further brutality if it does not abandon its air campaign in Iraq and Syria.
Kassig's friends say he converted to Islam in captivity and took the first name Abdul-Rahman.