Batman Issue 640

"While the Cat's Away"
Onyx encounters the Red Hood and learns just how much the drug dealers hate him for disrupting their operations. Meanwhile, Batman seeks out Superman for a trusted friend's perspective on what it means to have died and come back, yet feels unable to tell Superman exactly what it is that he suspects. Back in Gotham, Onyx is horrified when Red Hood suddenly kills a group of dealers with a machine gun. She does not condone his methods, but as he turns the gun on her, it looks as though she may not live long enough to discuss anything further.

Individuals

 * Batman
 * Black Mask
 * Red Hood
 * Onyx
 * Superman

Locations

 * Gotham City
 * Metropolis

Vehicles

 * Batplane