The son of an assistant in an early atomic energy facility, whose poor safety standards exposed workers to massive doses of radiation, Ojo is born without eyes. He creates a device allowing him to see and eventually becomes an associate of the
League of Assassins. Loathing atomic energy, Ojo steals an experimental atomic submarine, bringing him into conflict with
Richard Dragon and
Benjamin Turner. Although Dragon and Turner help recover the stolen submarine, Turner stays behind to confront Ojo, who previously killed his lover. Ojo captures and brainwashes Turner, turning him into the assassin known as the Bronze Tiger. Ojo later places a hovering eye over
Star City, the home of
Green Arrow. Assuming the eye to be a threat, Green Arrow and
Hal Jordan attempt to disarm it, but to no effect. Later, Green Arrow and Green Lantern
Guy Gardner succeed in destroying the eye. Another eye attacks Jordan and Green Arrow in
Arkham Asylum. Ojo and the Crumbler attempt to destroy an atomic power plant, showcasing the devastating effect of radiation. Even though Ojo upgrades the Crumbler's power, both villains are defeated by Green Lantern and Green Arrow. ==In other media==