Not sure if you know the Estes from Hands and Hearts.  They have a young son, Noah, who has a mitochondia defect which is wreaking havoc with his little body.  He is in fairly bad shape right now.  I have never met the Estes, but from what I can tell from their blog, they are dynamic Christians who really love and depend on the Lord.  Please pray that the spirit of fear will not overtake them, and that the peace that passes understanding will envelope them at this time.  Go over to their blog and read New to Our Blog, Read This First, then read Monday Update #1.  As of this writing, she hasn't put up a #2 update.  I guarantee that you will not be able to read it with dry eyes.  This family is quite an inspiration to me.  So much has gone on in their lives, but they are really living and leaning on Christ.