 Dexter theorizes that the killer murders his victims in extreme cold, explaining the absence of blood, and might be using a stolen refrigerated truck.Dexter allows Debra to pitch the theory, but their superior officer, Lt. María LaGuerta (Lauren Vélez), dismisses it.Dexter captures Jaworski, who admits his guilt and explains that he has no remorse for his act, Dexter responds by saying he has no remorse for what he’s gonna do to him.