 There's no way to know. Her father had it and she has a sister that also died from it. Oh, Heather, I'm so sorry. Thank you. Is there testing to see if he has the gene? Are you able to find that out? Well, there is a test available. I mean, you get half of your genes from one parent and half from another. So that's where we know there's a 50-50 chance. And there is a test to identify one of the 20 most common genes.