Niall Jacobs is a member of Vigilance.
He was assigned to upload a Stuxnet variant from inside a bakery, but his attempt failed due to Root and Reese's timely intervention. Reese noticed that Jacobs was carrying a FN P90 Personal Defense Weapon, upon which he promptly started to shoot up the bakery. Jacobs was eventually shot by Reese. After questioning him, Root and Reese took his ammo and called Fusco to arrest him.