Complete story — includes the ending
The body of Timothy Hartley is stolen while en route to the morgue. Jane invites coroner Dr. Steiner to join the CBI on solving the case having realized he is terminally ill and is looking for a distraction. The team are joined by FBI Agent O'Laughlin, to explore the angle of body thefts by tissue banks. Jane and Dr. Steiner bait the killer by having Dr. Steiner make a call and faking having found blood evidence on Hartley's body before it went missing. The Cooks' butler brings the money revealing the killer to be Hartley's mother-in-law who killed him because he wanted to start an international group for alien abductees using the Cook family name. Dr. Steiner invites Patrick and requests him to witness his death so there is no investigation. Patrick and Dr. Steiner spend Steiner's last moments over a cup of tea while Patrick shares his "carni" tricks with Steiner as he passes away peacefully.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, The Mentalist season 3. HTML formatting and reference markers removed. · Content license