I'm praying for your Dear Son Derek.
My Son in-law died from hear attack at home.
He was dead over 25 minutes. They kept working on him and he came back. They said he would have brain damage and may even be a vegtable. Expect a long recuperation. We came and prayed for him, he was in a coma.
A week and a half later he was back to work, driving from Miami Florida to Toronto Canada!!
I spoke to him myself on the phone and he was completely healed. He is not a Christian!
Praying for your Sons complete healing in the precious Name of Jesus.