because of these gaps in the case. there's no evidence that says this is where i may build it. this is who helped them. it could very well be that they had help and it could be that the help is in the united states since we don't know where the bombs were put together. >> you have spent a lot of time putting together language of the jihadist. i want to read for you the note that dzhokhar tsarnaev wrote after the standoff with police that left his older brother dead. he wrote that he was jealous of tamerlan. he said i do not mourn because his soul is very much alive. god has a plan for each person. mine was to hide in this boat and shed some light on the actions. we are promised victory and we shall surely get it. >> these are the words of a fundamentalist islamist terrorists. when did he become that? because it doesn't look like his activities in the months leading up to the attack were those of a