Police are searching for a man who allegedly took a knife from the scene of a shooting Sunday at the Sutter Avenue subway station in Brooklyn. The shooting, which occurred during a pursuit of a suspected fare evader, injured four people, including an NYPD officer and two bystanders. Meanwhile, the FDNY is cooperating with federal prosecutors after a grand jury indicted two former fire chiefs for allegedly accepting bribes to expedite fire alarm system approvals. Finally, WNYC reporters Bahar Ostadan and Brittany Kriegstein provide new details on the shooting at the Sutter Avenue subway station.