A ransom note was sent to a local Arizona news station following the disappearance of "Today" show co-host Savannah Guthrie's mother, Nancy Guthrie, the Pima County sheriff told CBS News. The note, which the station received Monday and agreed not to report on, contained specific details about the home and what Nancy Guthrie was wearing that night, Pima County Sheriff Chris Nanos said, although he would not confirm the accuracy of that information or the legitimacy of the note. CBS News’ Jonathan