Chris Brown will leave no stone unturned in his neverending quest to seek out the absolute nadir of sadness and emptiness. His habitual violent outbursts and horrifyingly misguided neck tattoos have clearly not filled the longing in his soul to become a walking, talking, “singing” cry for help which no single person in his life appears able or willing to answer. And so it comes to this: Chris Brown and his entourage donning turbans, robes, beards and automatic weapons for his Halloween costume. Exactly what he was going for isn’t readily apparent, but if it was “Completely Appropriate and Sensitive Halloween Costume,” than he missed it. “Happy Halloween,” indeed …