again, Aiden is fired by Mac for possibly tampering with evidence in his case (2.02 "Grand Murder at Central Station"). Later, Pratt rapes and kills Lilian Stanwick. Stella and Lindsay find Pratt's DNA along with another man's but can't prove the sex was forced so he walks again (2.18 "Live or Let Die"). He realizes he is being followed and sends his lawyer to the crime lab to get them to stop. This prompts Mac to look at old rape cases and finds out that there are five cases where there was no physical evidence or the DNA was too degraded but at least one of these cases is a match to Pratt's MO (2.22 "Stealing Home"). When Pratt realizes it is Aiden who is following him he decides to kill her. He steals a car, lures her out to a parking lot, kills her with his fists, and sets the car on fire in an attempt to destroy the evidence. Unfortunately for him, Aiden manages to leave behind enough evidence that is fire-proof for her former colleagues to convict Pratt of her murder (2.23 "Heroes"). Frankie Mala (played by Ed Quinn in season 2) is a sculptor and art collector, and Stella's one-time boyfriend. Stella finds out that Frankie has been taping them having sex and posting the footage online, so she ends the relationship (2.20 "Run Silent, Run Deep"). Frankie begins stalking Stella and later breaks into her apartment. He ties Stella up and plans to kill her, but she is able to escape and is forced to shoot him in self-defense (2.21 "All Access"). Shane Casey (played by Edward Furlong in seasons 3, 6–7) is a young man embroiled in a case where a serial killer uses the codes and stories found on a series of trendy T-shirts as inspiration for his grisly killings (3.04 "Hung Out To Dry"). He is also known for being Danny Messer's nemesis. Shane is believed to be targeting Sheldon Hawkes and others who put his brother, Ian, away for a crime of which Shane thought he was innocent. On the day of the sentencing, Ian hanged himself. In episode 3.11 "Raising Shane", Shane frames Hawkes for a robbery and murder, saying he will give the evidence to clear Hawkes if the team will prove Ian was innocent. He demands to talk to Danny Messer alone, and during this confrontation, Danny brings