all my work setting up the Session threads, and doing the PBP, and I fear the KY designation will be what most folks remember years from now. Oh well.
My deepest condolences to your sister, your nephew, and your entire family. I, unfortunately, have personal experience with an otherwise healthy family member dying unexpectedly, and before the time that anyone that knew them (or anyone that looked at an actuary table), would have expected. The passing of a loved one can be tough in any situation, but that is a particularly difficult scenario for immediate family members to cope with. Provide them with as much time, love, and empathy as you can. And while everybody is different, don't be surprised if it takes at least a year for them to be nearly back to normal. For me, I found it helped each night to figure out a task to complete the following day. It gave me some purpose, and something to do with my time, and helped to take my mind away from the pain. Only time well tell what works best for your sister and your nephew, but feel to suggest to them the technique that I employed.
You certainly were missed in the Session threads.