Plot summary
The CBI team investigates the fatal stabbing of Manuel Montero, a university professor of ancient art. Meanwhile, Hightower admits to La Roche that she had a sexual relationship with Rance Howard, one of Todd Johnson's victims. Rigsby and Cho visit Montero's warehouse and find he was illegally trading guns. Lisbon finds a link between Montero and Johnson - a gun from Montero's cache was the one Johnson used to kill his victims. Jane realises that Hightower might be identified from the fingerprints found at Montero's crime scene. He pries Hightower away from the briefing and tells her about the Johnson's connection to Red John. Having established Hightower's innocence, Jane lets her use him as a hostage to escape from the CBI headquarters. Hightower urges Patrick to share their plan with Lisbon, but he refuses.
Credits
Adapted from Wikipedia contributors, The Mentalist season 3. HTML formatting and reference markers removed.