| Issue | #1 |
| Published | December 1998 |
| Cover Price | 1.99 |
| Pages | 36 |
| Editing | Jenette Kahn (editor-in-chief), Mike Carlin (executive editor), Dan Raspler (group editor), Peter Tomasi |
| Characters | Martian Manhunter |
| Genre | superhero |
| Pencils | Tom Mandrake |
| Inks | Tom Mandrake |
| Characters | Martian Manhunter, Headmaster (intro; Thaddeus Romero Hoskins), Headmen, Lt. Segarini (intro), JLA (Green Lantern (KR), Steel, Flash (WW), Oracle) |
| Synopsis | The Martian Manhunter investigates a killer who is decapitating street people |
| Genre | superhero |
| Script | John Ostrander |
| Pencils | Tom Mandrake |
| Inks | Tom Mandrake |
| Colors | Carla Feeny, Heroic Age (separations) |
| Letters | Bill Oakley |
| Letters | typeset |