Subhan’Allah, I know exactly how you feel.
One of my friends’ brothers-in-law died… he actually went for ‘Umrah, then was going to a friend’s wedding in another country, when it happened.
This brother was also one of *my* brothers’ friends… he was really awesome with them, sort of like a big brother/ mentor… helped teach them Qur’an, hung out with them, stuff like that… and when he died, my youngest brother (who was around 4 or 5 at the time) just couldn’t absorb it - he was always asking, “When is R. coming back? When?” And we’d have to explain that he was gone forever, that he wasn’t coming back… :(

I had the same feeling when the husband of one of my mom’s friends died, of cancer. Subhan’Allah, it was so sudden: one day we were over at their house for lunch, the next we found out that he had cancer; then he went ‘back home’ and we recieved the news that he’d passed away.

Innaa lillaahi wa inna ilayhi raaji’oon…