The Islamic State of Iraq and Syria (ISIS) militant group released a video today (November 16, 2014) that shows American aid worker Peter Kassig was beheaded in Syria -- along with a dozen Syrian soldiers -- in the latest killing by the group posted on the Internet, according to the USA Today website.
The White House later said a review of the video confirms Kassig's death.
President Obama -- in a statement issued as he flew back to Washington from Australia -- said the Islamic State "revels in the slaughter of innocents, including Muslims, and is bent only on sowing death and destruction."
Obama added that Kassig "was a humanitarian who worked to save the lives of Syrians injured and dispossessed" by war. He called Kassig's death "an act of pure evil by a terrorist group that the world rightly associates with inhumanity."