Revolving Door Ryan and Kramer Upped at 48 Hours Mystery By SteveK on Oct. 21, 2008 - 10:59 AM CBS News has named Paul Ryan and Nancy Kramer as SPs of 48 Hours Mystery. Both currently serve as producers of the program. Ryan joined 48 Hours Mystery in 1999 and has been with CBS News since 1997. Kramer came to the program in ...