BiLL O'REILLY: 26-year-old Peter Kassig from Indiana executed the by ISIS killers in the video released over the weekend. Mr. Kassig the third American to be beheaded by this barbaric group. He's a former army ranger who was briefly deployed to Iraq in 2007 after which he was honorably discharged for medical reasons. In 2012 Mr. Kassig went back to the Middle East to work as an emergency medical technician and was kidnapped in Syria. President Obama has condemned the murder is quote an act of "pure evil" which it is.