A few days ago I got the news that Bitcointalk member Joerii (Joeri Pross) passed away, leaving behind a wife and 2 young kids.
I never knew the guy in forum but I am sorry to hear this 
He was only 40 to die unexpected suddenly, but I hear a lot more cases like this in last few years.
I was reading news reports you posted translated from Dutch and they are not saying what was the cause of death, but they know he it was not a crime, he just went out to walk.
Did they found out the real cause of his death?