Plot summary
Dr. Carla Dalton ( Laura Niemi ) is killed in the parking garage near a boys' hockey game. The weapon used is identified as a skate hook for tightening laces, and Carla's car is found dumped in the river. She was in Boston trying to track down her nephew Todd, who had Huntington's disease. Cailin shows up at Maura's, asking to stay with her while Hope is out of town, even though a sitter was left in charge.
Credits
Adapted from Wikipedia contributors, List of Rizzoli & Isles episodes. HTML formatting and reference markers removed.