S4·E1 Song of the Raven (1)
Aired March 19, 1999
Synopsis
Rachel performs a psychiatric evaluation on Raymond Corvus as Derek is convinced he is responsible for a series of murders identical to those he was tried and found guilty of committing. As Rachel struggles with the results of her evaluation and the knowledge it will put a man to death the team continues to research who is behind the newest 'harvester' type murders...