Person of Interest S03E04, Reese and Finch’s next number is that of Vanessa Watkins , a prominent New York prosecutor who is accused of killing her defense attorney husband, Jeremy. The police find a gun with her DNA on it and arrest her.
The Machine generates the number of watch repairman Lou Mitchell , who is consistently losing large sums of money at a casino. Finch & Reese find out that he and many other elderly gamblers are victims of a drug-money laundering operation headed by the casino’s owner Dario Makris .
Control holds Harold, Shaw and Arthur captive. She orders Shaw killed, but Root enters, guns blazing, and frees the trio. Root herself is shot and captured by Control, who tortures her, demanding access to the Machine. Control destroys the hearing in Root’s right ear and threatens to make her completely deaf and blind.