Jefferson Davis

Jefferson Davis lived with his brother Aaron Davis in Brooklyn. Aaron was constantly involved in illegal activities, which Jefferson despised. One night, Jefferson accompanied his brother to meet Turk Barrett. Jefferson was forced to fight Turk's henchmen and was arrested when the police raided Turk's hideout, even though he had managed to overpower Turk's men. His bail was paid by Nick Fury, the director of S.H.I.E.L.D., who was impressed by the story of Jefferson's fighting skills. Knowing that Turk would've been impressed too, Fury told Davis to accept whatever job Turk would offer him, so he could have an eye on the underworld.

Jefferson worked as Turk's muscle, making Turk a feared man in the city, until Wilson Fisk, a wannabe kingpin on the rising, offered Turk a big amount of money to get out of the city. Jefferson joined Fisk's Enforcers and reluctantly continued with the illegal activities since Fury still requested his services. Fisk's activities were finally put down during an attempt at human trafficking involving Mutant Growth Hormone, and Jefferson left them. Fury offered him to become an agent of S.H.I.E.L.D., but he declined, deciding he didn't want any part in that world. During therapy, he met Rio Morales, with whom he had years later his son Miles.