tamerlan tsarnaev hid from police. police say it showed radical beliefs most straighting the attacks. the defense argues he was manipulated by his older brother. a new isis video shows a young child killing an israeli arab man who isis claims was a spy. the f.y. of 19-year-old mitt romney musallams he s mohammad musallam says he s in syria and was recruited by isis. the family denies he was a spy. the iraqi military says it s making a final foush retake the city of tikrit from final tampa to retake the city of tikrit from isis. they are getting weapons and advice from iran. we re joined live from cairo with more on the story. and ian, this division of iraqi forces have been bolstered by iranian help. it does seem to be making an impact. what is different about this battle for tikrit?