Aaron Davis was a burglar and career criminal. His brother used to be his partner in crime. Whereas his brother reformed when he became a father, Aaron continued his criminal activities as the Prowler and became estranged from his brother. While stealing technology from Osborn Industries under orders from Roxxon, a spider genetically enhanced with the Oz formula crawled into his bag and later bit Miles Morales, granting his nephew powers and turning him into the new Spider-Man.