How sad, it must be devastating for you! 
Before my husband and I married in 1969 (aged 22 and 19) we planned our life together. We had decided that that we would have three birth children of our own, then adopt a child less fortunate than our own.
We had three birth daughters born in the 70s. In the 80s, we asked our girls what they thought of idea of adopting a child who was in need of a good home. It had their approval, and we adopted a mixed race lad, 9 years old , whose father was black and his mother white. He had learning difficulties and was epileptic. We then fostered a black lad, 16 years old, who had Downs Syndrome, before we adopted a baby aged 16 months of Greek/Cypriot parentage, also with DS. His parent's told everyone he had died at birth! 
The older two lads were removed from their birth parents when very young as they were being physically abused. Sadly we discovered much later, they had also been sexually abused in the care homes they had been in. 
Our youngest son's parents were told they could get in touch when he was 18, if they changed their minds, but they never did. He will be 40 next year.
Our older adopted son sadly died a couple of years ago, he had many health issues over the years. 
Our foster son left when he was 25, and we have never heard from him again.
Our younger lad is very happy in his care home, not far from where we live, and gets on well with his 'staff', as he calls them.
They are very fond of him, as is everyone who comes into contact with him. 