One of my close friends has a 26 month old daughter who's going through treatment for neuroblastoma. It was a sobering call when we got it, a group of us were hanging out, he called to be put on speaker and tell us all the news. Fortunately, she's doing well, but it's 5 years of follow up after treatment is over before being declared cured, and probably a nerve wracking thing with every illness, every doctor's visit, every scan until that all-clear is given. A little boy the same age as my son was hit by a car about a mile from my house, right in front of my son's elementary school, and I drive by the makeshift memorial to him several times a week; I have to look away or distract myself, or I tear up. I cannot imagine going through it as a parent and the worst case of losing a kid or being totally powerless against that possibility with an illness. It's just one of those things that I'll never grasp, hopefully never experience, but will also never be able to think about without a lump in my throat.

Cool of you and others to send a card to at least let him and the family know that they're not without people who care. All we can do is hug our kids tight and remember that there's nothing that's actually more important than them knowing they're loved.