As Miles Morales’ early adventures as Spider-Man progressed in the Ultimate universe, readers also learned about Jefferson Davis’ past long before his son became a web-slinging hero.
Thanks to the events of Secret Wars, not only was Miles Morales brought into the main Marvel universe, but so was his family, including Jefferson and a revived Rio.
Jefferson loved Miles very much, but after he discovered his son was the new Spider-Man, that put a strain on their relationship, especially after he initially blamed Miles for the deaths of Aaron and Rio, his wife and Miles’ mother.
As a younger man, Jefferson frequently accompanied his brother Aaron on his illegal pursuits, and while Aaron never left the criminal life, Jefferson tried desperately to get out, and eventually succeeded.