The First 48

Alias/Duel (9x8)

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In Louisville, a murder hits close to home when Detective Rick Arnold learns that the victim of his most recent homicide case is the brother of a good friend. If Arnold is to track down the suspect, he needs to discern between lies and truth--and real names and aliases. In Harris County, a popular teenager is gunned down on a residential street. Deputy Cory Pool and his team must determine whether the shooting was self-defense--or murder.