St. Valentine's Day Massacre

Summary

After five people are shot in Lincoln Park, the mayor blames Colvin for her lack of police work. Colvin puts Wysocki and Evers on the case to put her image to the public in a better light. Also, Isaac and Vonda are asked to look into an old domestic-abuse case.

Guest stars

• Warren Kole as Ray Bidwell
• Aldis Hodge as Deon Lucket