....Of the Kate Babcock killer?
He/she was a serial killer which made his/hers debut in Batman No414.
The story, placed during Jason Todd's first steps as Robin and crafted by Starlin and Aparo, had a mysterious figure horribly murdering young women by cutting them to pieces in the streets of Gotham.
This case became personal for Batman because one of the killer's victims was a passionate social worker, Kate Babcock, which caught Bruce Wayne's interest and possibly, his heart. Soon, the young girl fell victim of the psychopath's murdering ways. Batman swore to her memory that he will bring the killer to the authorities and he does come across a thug named Cutter which was pretty suspicious due to the fact that he used knifes.
Batman brings him in but James Gordon informs Batman that he couldn't hold him because evidence suggested that he was not the killer plus a new victim was killed during the Cutter's time inside jail.
Batman, disgusted with his failure (the first time i saw him failing as a detective), swore that he will do anything to his power in order to catch the killer.
Did he managed to solve this case eventually?
I red that issue from the Second Chances trade.