If your entire life is based on looks and you don't like what you see in the mirror of what passes for your soul, you may well take your own life.
I have known several people that have done so. For those that are Christian/Catholic and think that suicide is a "mortal" sin, worry not.
Keep in mind that Samson could not have taken his own life if God had not given him the physical strength to do so. And what of Saul, who fell on his sword rather than let the Philistines take the life of the Lord's anointed?
I tend to think that Robin Williams took his own life because the women in his life had already taken (via the corrupt court system) everything else. But this young man?
Who knows? Steroids certainly intercourse the crap out of your mind, especially so at the retarded levels these so called bodybuilders have been taking for years now. Think of it this way. At least he did not take anyone with him as is so often the case with those that go out via suicide by cop. Yes, his family suffers but at least no one else's family suffers and wonders just what their loved one(s) did to deserve death by the hands of a stranger.