Plot summary
The FBI team tries to track down the killer of a United States Attorney. Jane goes undercover in a homestead commune. Meanwhile, Lisbon asks for LaRoche's help on the case of the 12 former CBI agents who have been wire-taped, one of whom (Ardiles) has already been murdered. Rigsby joins LaRoche in searching a darkened warehouse for a suspect, where LaRoche receives a fatal gunshot wound from a booby trap.
Credits
Adapted from Wikipedia contributors, The Mentalist season 6. HTML formatting and reference markers removed.