he started like every one else who started,,couple of monnths/years after training regularly and seriously enough wanting to be a bodybuilder
almost no one just open his her mouth and ass and take hormones immidiatly upon visiting gym first time,,,it takes usually number of months/years of not so serious training,,trial and error with garbage supplements that make you shit your brains out,,,if you have good respond to training you obviously get introducred to drugs very fast into your bodybuilding since every one around you will say you should walk on stage and you will want to go higher and higher in competition level and do competition that count so the use with serious lifters start even earlier than the regular joe in the gym
its how well you respond to hormones/training combo+ symetry and muscle shape that will determine how far you will come in competetive bodybuilding,,some win local show and stop there no matter how many drugs they take because their symetry and muscle shape in particular is just not what it needs to be for higher level,,some win nationals and go pro because their muscle take the hormones and blow up right while keeping symetry untouched,,everything developed together as one unit,,
coming pro time it is everyone doing whatever he she wants to look/be bigger