This is the cbs morning news for friday, february 27th 2000156789 2015. Good morning. Im Lauren Lyster in for annemarie green. The knifewielding executioner who carried out the murder of hostages held by the terror group. Former isis captives nicknamed him jihadi john but now we know the identity of the masked terrorist. Don champion tell uss who he is and what some of those victimized by him are saying. Don, good morning. Good morning, lauren. His name is Mohammed Emwazi born and raised in london. He was on intelligence radar for more than five years but for a family of one of the ones he killed nouchbne of that matters. In all fairness discovering who he is might be important to some people but it should not be important to me. Reporter the parents of journalist james foley who was executed by isis laws august have learned the identity of their sons curl. What does that do . Isis is still doing its thing. Its a very narrow approach. The only thing ill be happy with is when isis is de