About the Detective Comics Volume 1 #754

"Officer Down" Part 6: "Monster in a Box"
Detectives Montoya and Allen have Jordan Rich, the man they are certain is responsible for Commissioner Gordon's shooting, in the interview room and are determined to extract a confession. However, he knows very well that the physical evidence will never be enough to convict him and he smugly avoids all possible traps they lay for him, even when they threaten to bring Batman in. At St Luke's Hospital, James Gordon has recently woken up and can confirm Rich's identity to Lt. Bullock, but did not see the man who shot him. Eventually, the police have to let Rich go. Batman confronts him on the streets of Gotham, but is told that he's powerless - if he doesn't have it in him to kill Rich, he'll never have justice. Montoya watches the confrontation from the shadows.
"The Jacobian" Chapter 9: "Tsunami Fire"
The Jacobian is asked by Nereus, king of the merpeople, to prevent a great disaster, an undersea eruption which threatens his city of Mayim as well as the American coast. However, although told he has accomplished a similar feat before, the Jacobian has no idea how. The arrival of the Mahmetchik, the people who have taken his memories from him, offers an opportunity - he will go with them willingly if they can ensure that he has the memories he needs to help. They agree, and he is able to communicate with the earth herself and persuade her to calm down. With the situation averted, he allows himself to be led away.

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