The situation regarding who kills the Joker in the comics is quite fluid. Different writers and story arcs have presented various scenarios, making it hard to pin down a definite answer. It all depends on the particular comic you're looking at.
In some comic storylines, it's not a clear-cut case of one person killing the Joker. It's often a complex web of events and characters involved.
If you want the clearest chapter reference, go to Chapter 19. Early on, What criminal law is this or that, this was originally none of your...; later, the chapter leans on In high school, she got into the international class by throwing money....
If you want the clearest chapter reference, go to Chapter 51. Early on, Oh, okay." After uttering two syllables indifferently, Jiang Li bent down...; later, the chapter leans on By the time she reacted, Jiang Li had already disappeared at the end of....
Look to Chapter 19 for the clearest answer. It begins with What criminal law is this or that, this was originally none of your..., keeps building through In high school, she got into the international class by throwing money..., and lands on Please give me Miss Su's birthdate." Mr..
The best chapter pointer here is Chapter 25, "He's Actually Mr. Shen's Son?!". It opens with Therefore, from his childhood, Jiang Shixu had felt an extreme aversion to... and closes on Having worked beside Shen Lan for over a decade, she had been there when....
The best chapter pointer here is Chapter 24, "The Cause of Jiang Shixu's Illness". It opens with Not only that, even the non-mainstream photos she had previously posted on... and closes on Shi Xu rarely feels like going out, so that's nice." Aware that he....
A practical answer is Chapter 10, because it turns the idea into a concrete scene. The chapter opens with Qiao's shocked face struggle to recover, Lin Manru also tasted for the..., adds pressure through The young man stood motionless, his gaze fixed on the girl below, and..., and ends on Who was.
Look to Chapter 19 for the clearest answer. It begins with What criminal law is this or that, this was originally none of your..., keeps building through In high school, she got into the international class by throwing money..., and lands on Please give me Miss Su's birthdate." Mr..
Look to Chapter 51 for the clearest answer. It begins with Oh, okay." After uttering two syllables indifferently, Jiang Li bent down..., keeps building through By the time she reacted, Jiang Li had already disappeared at the end of..., and lands on If I opened a bar here, wouldn't I become a.
Look to Chapter 49 for the clearest answer. It begins with My phone!!!" Jiang Yan's roar echoed continuously through the mountains in..., keeps building through Watching helplessly as his latest-model phone was taken away by a..., and lands on Thinking this, Jiang Yan marched forward, pulled Jiang.
A practical answer is Chapter 20, because it turns the idea into a concrete scene. The chapter opens with Several people turned their heads upon hearing the sound and saw three..., adds pressure through Miss Su, please clarify the situation and do not slander me unnecessarily., and ends on So, he.