Transcript for Charlie Gard's parents: 'We will let our son go and be with the angels'

This is one of the hardest things that we would never have decided we're about to do the hardest thing that we have a beautiful little. Put simply this is about us we. Gorgeous. In this little boy. There was bull with the red today's letter real genuine child's life. And a family to love him very busy. Enough reports like. Grill turning devastate his tie that following the migration and arrives. He's off to. The president of race and NBC anything about the girl. I saw these devices and loving. We've decided hours are long gone and saw his best interest. At his treatment and we will Fung guy. I'm favorite that I do. American and Italian team was still whether to trade they. Office thereby decrease in brain MRI and the beautiful lovely. There is one simple reason watch me. A nice time. We'll hope we'll survive them life. We're now in July. Ball boy they left his life hospital for months about. Any treatment while they did pull files have been full. Practically coming hotel instead of what I've reviewed by independent. We now not a I've taught had been given the treatment soon enough he would have had the potential to be a normal healthy little boy. Despite his fifth and in January fell on his muscles are pretty good side. Far from sewing irreversible path to stupid structural right that is. Talk to her on about tax cuts cited price DDD. When I was relatively normal mode of the night. We knew that also has it is and we knew. Which is why we continue fights. It's always been left for that the units to deteriorate that is basically for the boy. This is olds I've never been about. Back. What we wanted to do it takes a holiday from one world renowned hospital to an album wells are now hopeful and intend to save his life. It's created by the Wellesley. Lots of them. We will have to live with the wolf it would quibble about the rest of our lives. Spotlight on the inside and fired it has been spoken about some time but it is not worth it holds the line. Also. Oreo. We could know you've got to they've been. I will miss him terribly. His body heart this fellow place and development. Is there with a home births Hannity and you'll make a difference to people's lives billions to we will make. We end up back to spend all lost residents mourn the loss on. Oil port city of white Knight is. We just moments lately. A real. We but also a positive effect that it is very good who. It's starting to say about meant that in. We love you thought about. We always have. We always will memorial post story we've. Flint I'll do little boy. We love.

This transcript has been automatically generated and may not be 100% accurate.