Originally Posted by
winnie12 
I'm told by one of his friends that someone does know where he is but wont tell anyone.
Have you considered offering them the choice of telling you or the police?
One time when my daughter ran away from home I found her within two hours. I threatened every parent of her friends with a visit from the PD if they didn't squeeze the information out of their kids. No one wanted the hassle and everyone sang like a canary.
You have my prayers for serenity and your son for his safe return. God bless you, winnie.