26 years ago - Frances Kane is born.
12 years ago - 14-year-old Frances's powers manifest, accidentally killing her father & brother. She is raised by her mother who secretly hates her.
9 years ago - 17-year-old Frances goes to college, where she meets Wally West, who nicknames her Frankie while they date.
7 years ago - 19-year-old Frankie's powers overwhelm her. She loses herself to her Magenta identity, joining the Rogues.
3 years ago - 23-year-old Frankie is finally caught by Wally West, who makes sure she has the treatment she needs.
2 years ago - 24-year-old Frankie is recruited into the Suicide Squad, but she is tragically killed on her first mission by Atomic Skull.
Among the various characters to have populated Flash's infamous Rogues gallery, Frankie Kane is probably the most tragic. She had actually been Wally's girlfriend back when he was in college, but her abusive past lead her to lose herself to her magnetism powers, becoming an intensely scary villain.
Bad guys that wield magnetism are awfully scary. Magneto from the x-men is obviously one of the greatest villains of all time, and every time a character arrives with the same abilities you want to be careful how you use them. for Frankie this is handled exceptionally well, by making her a victim of her powers and with her tragic connection to Wally. The character becomes a real dramatic powerhouse.
We moved her into the Suicide Squad for a very deliberate purpose. We are working to set up Wally's career as the Flash and show him succeeding at the job, and to have him actually save Frankie is exactly the sort of success he should have.
So why then is she a victim of Atomic Skill in the Suicide Squad? We very much wanted to have the team implode on itself, and while the Squad is exactly the sort of place that she SHOULD be, her death is intensely tragic and immediately makes Bane's retribution feel necessary.