The way you said that, it sounded like they're children! I assumed they were aged around 8-13! Looked up his Wiki and was relieved to see that they're 35 and 38. Still awful, I know, but relieved that two children have not been left parentless!
I was much, much younger than that when my mum first got cancer, and around their age when she died and when my dad got terminal cancer, and no one called me a poor girl or looked after me, I can tell you that! Most people leave you to your own devices if you're bereaved as an adult. I'm glad that at least they will have each other.