Robert Danzig was Lincoln Lee's partner in the FBI for 5 years he was a proud father and husband he was killed by the Translucent Man during an FBI mission to pursue suspected illegal weapon sale. He was paralyzed by The Translucent Man and killed when the translucent man disconnects the device that was attached to him turning his skin to white and dies when Lincoln discovers him. When Olivia Dunham, Lincoln and Walter Bishop are in a room full of dead bodies Lincoln reveals that Robert had crohn's disease which helped provide insight for Walter that the Organic Shape-Shifter's could be stealing heavy metals from their victims. ("Neither Here Nor There")