Seurat

Seurat is a character in Deus Ex: Human Revolution. He's an arms dealer in Detroit.

Human Revolution
He operates from one of the apartments in Detroit, selling various types of weapons, ammunition, weapon upgrades, explosives and miscellaneous items. As with any other merchant in the game, players may also sell their items to him.

If the player saved both Josie Thorpe and the hostages at the Milwaukee plant, Greg Thorpe will tell Adam Jensen to mention his name when dealing with Seurat. This will provide the player with a permanent discount on all of his items.