I've been a fan of Tennessee blogger and author Katie Allison Granju for years. So it's with much sadness that over the last month, I've read her honest account of her teenage son Henry's drug addiction, hospitalization from an overdose and a violent assault, and his recent death. I didn't know Henry or his family personally, but I am grieved that he is no longer in this world. Part of the reason Katie blogged about this ordeal was so that parents will recognize the dangers of drug use and intervene early. Henry's spiral into addiction started with a bit of marijuana experimentation at age 14, and his parents could not have predicted this end.