The First 48 - Season 8 Episode 2 -

In Dallas, Det. Rick Duggan investigates the murder of a young man shot in the backseat of his friend's car. While scouring the crime scene, Duggan finds an interesting lead--mail. He hopes this clue will lead him to the killer. And in Minneapolis, Sergeants Bruce Folkens and Chris Karakostas must find the person who savagely beat a homeless man to death.