author John is a very successful and popular contributor in the bodybuilding world. He was previously Senior Editor for Muscular Development Magazine and has contributed to Fitness RX for Women Magazine, Fitness RX for Men magazine, Muscular Development en Espanol Magazine and Musclemag International.

John has also appeared as a steroid expert on HBO, ESPN and ABC's 20/20 as well as consulted on, and appeared in, the steroid documentary Bigger Stronger Faster. Today he is co founder, along with Dave Palumbo of RX and regularly co-hosts RX Muscle's Heavy Muscle Radio as well as After Hours with the Whack Pack.