Kurt Busiek's Astro City, Vol. 2 #19 (1999)

The Only Chance
Unlikely as it may seem, Steeljack has solved the mystery of the Black Mask Murders. But can he stay alive, and free long enough to tell anyone? And would anyone even believe him? Most all of the villains and lowlifes of Kiefer Square have been hired by a sole villain, The Conquistador, to aid him in conquering the city.But The Conquistador is not what he appears. Behind the mask, he is an old man who was once the Hero known as El Hombre. Disgraced for having comissioned a crime so that he could foil it, all to gain popularity, it seems he is once again trying the same trick. But Steeljack is a captive, and being transported back to prison.Can he free himself, and find a way to warn the residents of Kiefer Square before they become casualties in El Hombre's plan?
Release Date: 1999