Our neighbors adopted two boys from Russia. One was 7 and one 12. I believe they were bio brothers too. The seven year old made it, but the 12 year old was too far gone, with no love nor capacity to love. Purely a sociopath, already too late to have any impact. He hurt other children, lied constantly, stole, tried to kill them, and burnt down their house. By 17 he was serving time as an adult.
That is just so heartbreaking........