Maybe she was still stood up on a date. Her civilian persona got attention from a rogue out of costume that figured out her identity and was trying to manipulate her. And it worked. Prima Donna died, and no one knew. Of course she doesnāt remember, but she sometimes likes sparring with Danny to see him improve. She covers patrols for him, and works together with Red Huntress. Theyāre friends, teammates, and it fills a part of her she canāt quite name.
Skulker was a green lantern or another type of human galactic hunter who tracked down villains across the galaxy and found and kept dying species from extinction when their planets died.
Walker was the founder of Arkham Asylum. No one broke in or out until after his death in the behinnings villainy in Gotham. Way before Batman was even a thought. He used to be a lot more caring, making programs to help rehabilitate but inmates would take advantage of the lax rules of the prison to get into more trouble, which would land him in trouble with the government.
Kitty and Johnny found a demon they named Shadow. They were small town anti heros, sometimes helping people and sometimes they took some cash from the criminals they found. They died a few years before Prima.
Youngblood wanted to be a hero, but he was too sick. The one time he tried, his heart gave out and he was found dead the next morning outside the hospital.
Pandora was the Amazon Champion after releasing the worlds dangers to humanity. She made it her mission while alive to fight these evils. Diana looks up to her.
Spectra was a woman in a field dominated by men who tried to get into her head. Always getting taken advantage of, and set up incredible standards for patient care in Star City. She was killed by one of her colleagues when she stood up for her patient. Not an official hero, but remembered as one.
Klemper was essential for helping out a stuck couple heroās back in the 1900s. Hed shapeshift into officials to corroborate stories and get them places to live.
Anyway, most of Dannyās rogues could have been good people or considered heroās and the injustice in their life effected how they are in death.