Complete story — includes the ending
A state senator is killed by a sniper's bullet while riding in a parade. The only clue is that during the hour and a half of time unaccounted for just before the parade, she had blueberry waffles for breakfast somewhere. Isles is upset that she donated her kidney to Cailin three months ago and has yet to be thanked for it. She and Rizzoli get caught spying on Cailin, who gives Isles an heirloom from Paddy Doyle. Now recovered from his spinal surgery, Casey returns to Rizzoli's life. However, he tells her that he is returning to Afghanistan to help in the soldiers' therapy there.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of Rizzoli & Isles episodes. HTML formatting and reference markers removed. · Content license