Slain By a Secret

S7 E4: Tammie Smith goes missing and when her car is found abandoned in a parking lot investigators wonder if she's been a victim of a random carjacking. But Special Agent Hinman thinks they're dealing with something far more sinister. Sure enough, when Smith's body is found miles away form the parking lot her corpse tells the story of a violent struggle. One clue in particular stands out to Hinman and gives detectives insight into the perpetrator's mind.