Thank you AST for a job well done.  Heroin and crack are right up there with opioids when it comes to the big problems we face.  This is what needs to be the focus of our drug enforcement efforts.  Marijuana ranks below alcohol in terms of damage to our society and legalization will, hopefully keep that substance from sucking up, and wasting our resources.  People like this, who deal in truly dangerous and addictive substances must be pursued, documented and locked up for a long time.  It is good to read about the success of this investigation!