peter kasic, we met him back in 2012 over the summer in lebanon.been in the country for a few months and was up in a hospital in a tripoli volunteering to help wounded syrians. peter kasic was a young man who is very driven by a need to do something to better the world. especially whether it came to syria. he had told us back then that he felt as if he had one life to live, one chance at life and he had this profound desire to make some sort of a difference. a few months after we met him, he actually decided to do even more, setting up a nonprofit, a emergency response and assistance. sarah's folk us is trying to train up volunteers at those make shift field clinics inside syria and try to get medical assistance to them. he, like the other hostages were beheaded before him, whether media activists, whether journalists, whether aid workers went into syria because he felt that he had a profound responsibility to make a difference. george? >> these videos are terrible to see. there are brutal tactics. surprisingly, isis is win something people over an

. >> reporter: it took the national security council to confirm peter kasic is now in the hands of isisrist group released their latest beheading video true to form by displaying another hostage and saying essentially he is next. alan henning was a british aide worker kidnapped in syria and held by isis. he makes a statement in the video clearly under dur esin the minutes before his execution. on the tape what appears to be the same masked executioner as in previous isis videos speaks with a st)ong british accent and says because the american air strikes in syria kasic would be next. kasic, once served as an army ranger, even did time in iraq discharged in 2007. kasic is from indiana and went worker.middle east as an aide he was abducted in lebanon while helping syrian refugees turned over to isis. his abduction and detention by isis was not publically reported until now, and his parents took to youtube to issue a desperate plea. >> we are so very proud of you and the work you have done to bring humanitarian aid to the syrian people. we implore those who are holding you to show mercy an

commander of the nusra front urged isil not to execute peter and they threatened to be head him on a video posted online and the front commander says kasice medic who treated him when he was wounded and isil threat to kill the american has divided people especially in light of his conviction to islam. police in canada said the shooter acted alone and said when michael zehaf-bibeau did this. >> this shows the man charging in the house of parliament as people run away, the closed circuit video shows the shooter from multiple angles and hijacking a car and storming a building after killing corporal nathan cirillo and he defiantly rallied the country before the same parliament. >> vigilant and not panic and as for the business of government here we are in our seats, in our chamber in the heart of democracy and our work. >> reporter: military bases cold and told to wear civilian gear when they leave security in canada has already changed and is likely to change more. the lightly guarded parliament where the gunman entered with a rifle and shot by arms is now surrounded by security. >> the kind of terrorism we have now is it self in a very vic