Brian Augustyn (November 2, 1954 – February 1, 2022) was an American comic book editor and writer. He often worked as editor or co-writer with writer Mark Waid, such as on The Flash in the 1990s. He wrote Gotham by Gaslight – which imagines Batman tracking Jack the Ripper – the prototype of DC's Elseworlds imprint, which featured versions of their characters in alternate settings. Source: Wikipedia (en)