Bostin was a product of the 2010s era where guys went full retard thinking they found the miracle via mega dosing roids (not understanding that if you don't have the genetics, there's really no point going beyond gym rat/weekend warrior dosages).
Partly gh15 influenced, partly as a response to the fake natty/ifbbs take a cc of winnie and a couple anavars era pre-2010s.
Then there was the moronic synthol shit

I really feel sorry for the guy and his family.
It also shows the difference between high national level genetics (rich piana) and amateur level genetics (bostin). Same level of abuse but one guy was able to last 15-20 years more because his genetics were more resistant to the sides.