By Brandy McDonnellAn abbreviated version of this story appears in Thursday's The Oklahoman.'Killing Pain': Documentary series wins regional Emmy Awards for chronicling Oklahoma's opioid crisisEven after almost two decades, Reggie Whitten's voice still thickens with emotion when he talks about his son, Brandon."It's hard to believe your own child can become an addict - and I didn't believe it.Read more on NewsOK.com