Jill seeks advice from Diane about her current situation with Don. The detectives investigate the death of a man who was shot in front of his wife and the victim's brother, Joaquin is happy to help the detectives know about his brother's background. Martinez tells Medavoy that he's passed the sergeant's exam and since he scored well he expects to get the promotion. Preston Ross (from Latent Prints) is impressed enough with his work in getting prints off the gun used in the murder, so much so, that he delivers the results in person, much to Andy's delight. Medavoy allows Martinez's pending promotion to distract him. An officer from narcotics questions Russell in an attempt to get information that will help them with their case against Don Kirkendall. Mary Franco comes downstairs from anti-crime, causing Sorenson to become a little flustered evidently she got her promotion. After talking with Jill, Diane agrees to meet with Denby to get a better feeling for him. During her meeting with h