Bones (2005)

S07E04 The Male in the Mail

A gruesome discovery of dismembered body parts is made in several mailboxes at a dead letter office, and the Jeffersonian team quickly identifies the victim as a worker from a nearby Ship 'n' Print, where the employees had recently shared a lottery jackpot. As the investigation unfolds, the team uncovers a tangled love triangle involving the victim and two married coworkers. Although the husband seems to have the strongest motive, a vital clue ultimately helps them crack the case for good.