“an unknown orphanage raised teenager into my home”
I get what you mean. However, the shooter was adopted as an infant. It hasn’t been confirmed he was adopted internationally. If he was adopted internationally from Russia or from an Eastern bloc country, the chances are pretty high he was a Fetal Alcohol Syndrome baby. (Of course, even if he was adopted domestically, he may have been a FAS baby.)
I wouldn’t adopt a kid from another country. I adopted four us kids. I see most of the foreign adoption that friends have done have ended up in big mental problems.