flight scheduled. >> reporter: prosecutors point to conversations on line including one last summer which one wrote about his desire to shoot obama and then get shot ourselves. that will strike fear in the heart of infidels. that brought fbi agents to his front door. >> they came as members of the joint terrorism task force, they identified them as such. >> reporter: even after being interviewed by fbi they investigators say they began coordinating travel to turkey often seen as a gateway into syria. >> to prove a conspiracy you only have to show that there's been a material effort or forward step in furtherance of the conspiracy. and clearly, those communications would indicate