Songs and sadness

I heard this great song today that made me think of Nolan.  Be Still by The Fray.  I put a link of it in this post. 
http://www.bubblews.com/news/8007979-yoga-tears-and-my-son

I'm sad, as always.  I just look at his picture and cannot help but feel I failed him.  How did I not know that something was wrong?  How?  How can God create a disease like Myocarditis and not give us a fighting chance?  It's not fair. 

I cannot believe it has been almost two years. 

How is that possible?  I miss Nolan so much.