If I'm to be honest here, the kid has problems and I am just now beginning to accept it.
And that is a big thing. Acceptance of the problem. Denial stops here, and now, when he asks, you will be better able to help.
Wow, it sucks doesn't it?
(I have two addicted children, one is 28 and had to go to prison the get his life back and my 17 year old daughter is in a juvenile drug court, but keeps making bad choices.)