Warning: The following contains SPOILERS for Batwoman season 3, episode 12, «We're All Mad Here.»
Jason Todd's death at the hands of Joker in the post-Crisis Arrowverse was confirmed in Batwoman, though it remains to be seen if he was resurrected and became the Red Hood in this reality. The reference to the rebellious Robin's death also raised the question of just what happened to the rest of Batman's followers in the Arrowverse. While Batman's history in the Arrowverse has been extensively chronicled, almost nothing has been said about his young partners, beyond a single confirmation Robin existed in one Vesper Fairchild broadcast.
The action of Batwoman season 3, episode 12, «We're All Mad Here,» centered around the search for one of the Joker's special joy buzzers, which had the power to make someone as crazy as Joker or restore sanity to a lunatic through a precisely calibrated shock. The anti-hero Alice, who sought the joy buzzer as a cure for her own increasing mental instability, was the first to find it in the hands of former Arkham Asylum inmate Kiki Roulette, who had once been employed by Joker as his personal toymaker. Alice browbeat the mad inventor, but Kiki laughed off her threats, saying that it was a good gag, "...nothing beats the one about the time I helped the Jokerbeat Robin to death with a crowbar." The series silently eluded to this one episode earlier, when the Joker's old hideout was shown to have a bloody crowbar in a glass case. In both instances, the bloody crowbar was a reference to the death of Jason Todd, the second Robin, who was beaten with a crowbar by the Joker and left for dead in an exploding warehouse in the classic Batman storyline A Death in the Family in 1988.
Related: Batwoman
Read more on screenrant.com