"How Mike Kefalianos forged his rugged lats..."
...steroids
You have that backwards actually, because what you said makes no sense.
You can diet and train to the Nth degree but you ain't gonna look like that unless you're injecting yourself up until you're pissing anabolics.
Obviously the difference being diet and super duper training aren't what gets people into that world, it's steroids. That's the final piece in many bodybuilder's puzzle.