Dwarfstar

In his first appearance, he acquires a Bio-Belt similar to the one worn by college professor Ryan Choi and becomes the super-villain Dwarfstar.

The woman, Jia, who was a former flame of Ryan's, would later turn to a life of crime and become the time warping villain Lady Chronos.

Dwarfstar hired Deathstroke and his group of mercenaries, who called themselves Titans, to kill his nemesis Ryan Choi, a physics professor and costumed hero known as the Atom.

Deathstroke along with Cheshire, the Tattooed Man, Cinder, and the recently resurrected Osiris carried out the sadistic mission.

When the team leaves, Waller's agent Tremor brings up Dwarfstar's history of being a serial killer and rapist.

Revealing that Waller told her about Choi's death, Giganta, with Dwarfstar's belt, proceeds to beat him to a bloody mess.

With Dwarfstar begging for his life, Giganta duct tapes his mouth shut as she continues to nearly beat him to death.

[5] Later, Ray discovers evidence that Dwarfstar had a hand in Ryan's death, and vows to find him and make him pay.

[6] Ray eventually finds Dwarfstar in a hospital, where he is recovering from the severe injuries he sustained from his torture at the hands of Giganta.