Paris Green
Gillian asks Jimmy to visit the dying Commodore, his biological father, which he does reluctantly. Jimmy notes that Gillian was thirteen years old when he was born and the Commodore over 50, making him the result of a rape. The Commodore tries to mollify Jimmy, even telling him that "the wrong man is running this town," implying that Jimmy should supplant Nucky, whom Gillian reveals was the one who brought her to the Commodore decades previously. Jimmy decides to stay with his father as he passes away. The decision proves crucial, as Jimmy is first to find out when the doctor detects significant amounts of arsenic (Paris Green) in the Commodore's hair sample. The Commodore begins to recover, and Jimmy confronts Gillian with an empty canister of arsenic that he found in the trash. He reassures her of his support, whatever her intentions, but she remains silent.