John is an inker who has worked in comics for over a decade now. He has done work for Marvel Comics like Punisher, Spider-man and Avengers.
But he is best known for his work for DC Comics including Doom Patrol, Superman, Action Comics and especially The Flash with Geoff Johns and Howard Porter.
Marvel Superheroes - JAM
Owner: Daniel Partouche
Ed Benes- Supergirl and Wonder Girl
Owner: Jason Norek
Young Avengers Issue 12_Pgs 4/5
Owner: Demetrios Williams
Fathom Pinup Top Cow 1999 Jam Poster
Owner: Nick Baltagi
* These examples are courtesy of Comicartfans.