The investigators try to figure out how a small time drug dealer was killed and why. The division learns that Jennifer Davis knew Ray Turner when she was in Las Vegas. Magda tries to learn if Ray was ever abusive to her.Nate tries unsuccessfully to end an affair with Suzanne because he knows her husband is a cop.Stacey learns Mr. Hicks paid a lot of money to mess up a DNA test because he found out that Jennifer Davis isn't the biological daughter of Joe Davis.