for being "outfront" tonight. we are learning more now about the death threats, yes, death threats that have been made against bowe bergdahl's family. the fbi has decided it's serious enough that they are investigating. senior law enforcement officer telling cnn that bergdahl's father, bob, has received threats in three e-mail messages and a friend of the family telling cnn that he's had voice mail messages, effectively suggesting, we know where you live and you need to leave town. ed lavandera has been following the story, what else have you been learning about this very disturbing side of the story? >> reporter: well, a lot of those intimate details of just how these threats were made and the exact content of those communications have not been made, but a military spokesman had told us that all of this is being left up to law enforcement officials to investigate, fbi agents are looking into these threats, as well, but it is something that is very alarming to the friends and the people