My ex had severe drinking and pill problem. The stuff I could tell you! OMG. FOR NO REASON he threatened to kill people closest to him, broke things, fired a gun, etc. FOR NO REASON. He later denied any recollection. Eventually those around you will walk away for their own safety. Unless the person wants help, rehab is not going to help.
I always admired Randy. He's from my homestate of NC. He made us so proud for so long. I hope he gets help soon.