Second ransom note in Nancy Guthrie case claims she died, sources say

Investigators familiar with the case believe it is likely that two ransom notes sent to Nancy Guthrie's family were written by the person or group that abducted her. While the first note demanded millions in bitcoin, the second claimed that Nancy Guthrie had died, albeit not purposefully, according to sources who reviewed the notes. CBS News' Bradley Blackburn has more details on the case.