It is so real, that nowadays young people don't think using drugs is a big deal. It is their social norm. "I've got to try it, don't worry I'll never get addicited to drugs or I'll never get over dosed." There is always something new coming out to the market, the path of "TRYING" will never ends.
Not that I support drug, but to be fair to the guy, the root cause of his sudden madness is still to be determined. (currently the family declined that he has been taking drug recently)