Kevin T. McCarthy

Horatio must protect a Mexican police chief from the unknown assassin responsible for her husband's death.

The team reopens the 1953 murder case of a 19-year-old aspiring rock 'n' roller when new evidence suggests he was not killed where his body was found.

The murder of a rare bookseller brings Jane and Maura into the world of Keltic writings and coded confessions, just as Maura is preparing Jane to meet her new man. Angela's relationship with Cavanaugh changes pace.