A Dead Kid, a Notebook and a Lot of Maybes

S3 E7: Intelligence sets out to find a missing teenaged boy who they believe poses a serious threat to the students at his wealthy school after finding disturbing drawings in his notebook. Meanwhile, Atwater (LaRoyce Hawkins) is eager to make a good impression on a prominent African American police Captain (guest star Eamonn Walker) and Olinsky (Elias Koteas) and Michelle (guest star Madison McLaughlin) find themselves in a difficult situation and turn to Ruzek (Patrick Flueger) and Burgess (Marina Squerciati) for help.