Vince Melocchi

Carlos and Gabrielle get temporary custody of Lily; Bree's father and stepmother come to town to mediate; Susan suddenly finds Karl back in her life.

Local Arizona authorities seek help from the team to locate a methodical killer. Plus, Hotch is in the running for the new BAU unit chief.

Mona must answer to the police; Hanna attempts to repair Mona and Leslie's friendship; Emily encourages Sara to consider the possibility of emancipation; Alison and Lorenzo grow closer.

When an executive and his wife are murdered, Monk tries to determine whether a baseball player is involved.

Valens helps Rush search for her abducted sister; Jeffries tries to close a case that has haunted him for 17 years.

Sipowicz believes that an off-duty cop who got shot is corrupt; an old man is shot dead at a seedy hotel.