[s2e18] Jones -

: This episode marks the first appearance of Will LaMontagne Jr. , a New Orleans detective and the son of a detective who originally worked the case pre-Katrina. His chemistry with JJ begins here, eventually leading to their marriage and family later in the series.

: The team makes a major breakthrough when they realize the killer is actually a woman, Sarah Danlin . Her motive is rooted in the trauma of her father's death; she targets men she believes are "sinners" or "lustful". [S2E18] Jones

: The episode heavily features the landscape of a post-Katrina New Orleans, using the city's recovery and "lost" records as a backdrop for why the case went cold. Notable Quotes & Trivia : This episode marks the first appearance of