Plot summary
In 1993, Paddy Doyle was responsible for the death of Lt. Cavanaugh's wife and child. Arson Detective Calvin Ghetts, who died recently, has been connected to Doyle, causing the court to consider letting him out on bond. Frost, Maura and Jane find photos in the exhaust pipe of a confiscated vehicle, which leads Maura to talk to Hope as the photos connect her to Doyle. She had helped bandage Doyle after he set Cavanaugh's apartment on fire.
Credits
Adapted from Wikipedia contributors, List of Rizzoli & Isles episodes. HTML formatting and reference markers removed.