they may give a glimpse into his disappearance that night in 2009. writing "leadership was lacking if not non-existent. the conditions were bad and looked to be getting worse for the men that were actually the ones risking their lives. penned in two different writing styles, one in cursive, the other in block print. the bergdahl family purportedly confirmed the authenticity of the letters revealed by sources in contact with the taliban. >> i'm please asking for help rrp held hostage for nearly a year, american roy hallums can relate. >> when i did mine, they set a piece of paper in front of me and gave me a pen. pun person sat on each side of me telling me exactly what words they wanted me to write. they wanted me to print it because they couldn't read english in script. >> reporter: at times bergdahl's thoughts seemed to wander touching on mathematics, god and the universe. several portions of the letter blocked out. it's unclear by whom.