Former Nashville assistant police chief John Sorace died Feb. 20 in custody while awaiting a Rutherford County court hearing on homicide charges.

A little bit of Nashville died on Feb. 25, 1975, when a 9-year-old girl never returned home from a walk to take cookies to her Green Hills neighbor.

The special episode, which will exclusively feature Case and Stafford, will see the two trying to piece together where they are and who abducted them.