The worst kind of news. I am so sorry.
There is very little that a person can say to truly help ease the kind of pain that you and your family must be enduring right now. But I would say that the number of people in your corner extends far beyond what you see in reality. You have an entire group of people here that will be thinking about and praying for you, your mom, and the rest of your family now.
Your circle of support just grew exponentially, and my family will keep yours in our thoughts and prayers.