investigation, but the local medical examiner already signed the manner of death as suicide. however, in the summary of the case written the day lennon was found, the local medical examiner asks, did he hang himself? will autopsy tell us? and left the conclusion on the manner of death pending. we asked to interview radish who declared the death a suicide. instead, a department spokesperson sent cnn a statement confirming the conversations between roberts and radish in writing, "the comments released by the naacp were a sin opsis of the naacp." >> we don't have confidence in this local group here to be able to carry out the depth level of the investigation that needs to be done. >> reporter: now the fbi is reviewing the circumstances surrounding lennon's death. >> that's all i've asked for. what is due rightfully to me and