The First 48 (2004)

S3E11 Close Ties / Last Call

Title: Close Ties / Last Call Plot: Detective Alex Femenia from Phoenix is summoned to investigate a grim scene where three young individuals are discovered deceased in their residence. As darkness descends, he anxiously awaits the Medical Examiner to clarify whether it’s a case of triple homicide or a murder-suicide. Meanwhile, in Memphis, TN, Sergeant Tony Mullins and Lead Investigator Sergeant Caroline Mason receive their first call of the week. A woman reports a corpse sprawled on her front lawn. Upon arrival, they meet the victim's mother, who reveals that her son was last seen with his girlfriend. With time running out, the detectives must track down the girlfriend to uncover the truth.