Dear Jess and family,
I am so sorry for your loss, as many others have said there are no words that can make it better, from what you said in your post earlier in the week your little Luke was a brave young man who fought with everything he had. My heart is breaking for you and your family, I couldn't imagine anything worse than losing a child. My prayers are with you.
Enjoy playing with the angels little man, no more pain and no more hospitals for you! Rest in peace.
Lots of love and big hugs from Danae.