What a nightmare for your family. If you’re like me I was blamed for every wrong my kids made. The oldest turned to drugs at age 20… my fault. The closest I came to suicide. I had a plan in place and I’m not sure why I never carried it out. Too much love for my husband and my other children. Im sorry you had to live through that and obviously there are no answers. He is who he is. And life goes on. BTW my daughter is now 49 and still living on the streets. I hope you have much joy with your other children.