Dr. Robert Borden born Nigel Thornton was a Sandstorm member who worked as an FBI psychologist in order to pass intel to his terrorist organization.
Nigel Thornton was born in London, England, there he received his MD from Hardyshire University School of Medicine where he also completed his residency in Psychiatry.
He married Chris and they both volunteered with Doctors Without Borders and were placed in Afghanistan where they helped build a hospital and helped injured and sick people, victims of the constant insurgents’ attacks.
Somehow, Chris stumbled across an injured female Navy SEAL in the woods and took her home to treat her wounds against her husband’s protests for aiding a fugitive. However, Nigel helped Remi during her recovery and took her for a hike through the woods a few miles away from the village. From the hill they were at, they witnessed American planes bombing the houses and the hospital killing everyone inside, including Chris.
Angry and confused, Nigel was reluctant to follow Remi deeper into the woods but she finally convinced him and promised him that he would get revenge from his wife’s death if he joined Remi and her family.
When Remi arrived to the FBI as Jane Doe with no memory of who she was, Borden introduced ZIP to Bethany Mayfair and Kurt Weller as the drug given to Jane in high quantities that caused a permanent state of amnesia.
Trying to escape before anyone could link him to Sandstorm, Borden packed a bag and decided to wear his old wedding ring, however, he was surprised by Patterson who recognized the ring from one of Jane's sketches from her flashbacks. The two of them fought and he accidentally shot Patterson. After taking her to one of Sandstorm's safe houses, he patched up her wound and watched Shepherd torture Patterson.
Borden managed to break free from Kurt Weller and left, leaving no trace behind.
Lured by a staged conversation performed by the team, Borden and some Sandstorm members arrived to the place Weller mentioned hours before. From the car, Borden witnessed a fake fight between Cade, Patterson and Reade. He ordered his men to go in pursuit of Cade but hidden lamps alerted him that it was a trap set by the FBI. Aware of the danger, he ran in opposite direction but got intercepted by Patterson who was waiting for him at gunpoint. He hid inside of the house trying to scape Patterson but she shot him in the vest; unable to keep moving, Borden fell to the floor and threw a granade next to some propane tanks that exploded and killed him, consuming the place.
They made a connection after spending a whole day taking care of Maya Ahmadi and started dating a few months later.
Even though they had some trouble with Patterson's workaholic personality, they managed to maintain a normal relationship until she realized he was Sandstorm's mole.
Involvement with Sandstorm
Afer Nigel's wife, Chris, rescued a dying Remi from a drone attack, she decided to keep the Navy SEAL on their house until her full recovery. When Remi got back on her feet, she and Nigel went on a hiking excursion through the woods, from where they heard some bombings that destroyed Nigel's home and killed his wife.
Trying to keep Nigel away from the bombing site, Remi urges him to stay as away from the town as possible until she admits having been part of Orion and stating that something wasn't right with U.S. Law Enforcement. She promised that if they found their way back to America, they could fight back alongside her family. Once back in the United States, Nigel changed his name to Robert Borden to use it as a cover.
Borden was an active Sandstorm asset inside of the FBI working as a psychologist. This job granted him access to all kinds of personal information from his patients. He made his way inside of Jane’s mind since the day he met her. His job was to brief Shepherd about Jane's and the rest of the team members' thoughts, problems and movements.
"Sometimes the best we can do is to try to feel alone together." - to Jane 2.02 Heave Fiery Knot
"Running from your problems doesn’t fix them." - to Jane 1.14 Rules in Defiance