Judy Tygard has been promoted to senior producer from producer for “48 Hour Mystery.”

Except for stints on ABC News’ “20/20” and “Primetime Live” from 1997 to 2002, Ms. Tygard has been a producer or senior producer at “48 Hours” since 1993.

She joined CBS News first in 1985 as a news writer for Bob Schieffer and Morton Dean at the “CBS Evening News.”