4x09 No One Mourns the Wicked
First Aired: Aug. 20, 2013 on TNT
Summary: When Jane and Maura are asked to present the case of serial killer Charles Hoyt at a symposium for law enforcement, Jane worries that her greatest challenge will be facing bad memories. However, as she and Maura begin a simulation of investigating Hoyt’s murders, they soon come across a…
Maura Isles: It's not a grain, it's a chenopod
Jane Rizzoli: Well, I don't like chenopads
Maura Isles: [Smilingly] Chenopod! Quinoa is closely related to beets, spinach and tumbleweed
Jane Rizzoli: Tumbleweed? Yeah, put that on the top of my do-not-serve list too!
Maura Isles: But luckily they're not all serial killers!