Knox signs much of his political work “Blotski,” and he and Republican News cartoonist Brian Moore, better known as “Cormac,” work together as “Kormski,” drawing the anti-clerical strip “Dog Collars” for Fortnight magazine. Since 1989 he has been the editorial cartoonist for The Irish News, a nationalist newspaper based in Belfast. Since 1996 he has contributed the “As I See It” feature to Hearts and Minds on BBC2 Northern Ireland. From 1997 to 1998 he is political cartoonist for Ireland on Sunday.
Downey’s offbeat reports of the 1994 FIFA World Cup for The Irish News are subsequently compiled for his first book, Just One Big Party. He spends six years as a BBC news producer in Derry and Belfast, before joining the Derry News as editor in 2001. During his period as editor (2001–2004), the Derry News wins two Newspaper Society awards for Fastest Circulation Growth in the United Kingdom.
Since 2004, Downey has published six comic novels set in the criminal underbelly of post-ceasefire Ireland. His books have been described as “a superb blend of comedy, political dirty tricks, grisly murder and bizarre twists.”