Billy Aaron Brown

The team bring in a suspect during the investigation of a murdered marine. However, they are forced to start again when the suspect is killed.

The team investigates the death of a hip-hop artist who is murdered just days after signing a record contract with Kevin Smith.

Voight and the team take a look at a house that has been linked to a series of gangs; Halstead struggles to maintain his composure when he is confronted by people from his past.

A return to high school brings Melinda into contact with a dead cheerleader and her troubled former squad.

When Cate goes back to work, Paul has trouble dealing with his daughters' burgeoning interest in boys.