TIS, here are the questions to your answers:
the girl has been the prince's fiance for a couple of months. Since then "THEY" started asking around (the intelligence, the tabloids, etc.). She has not been a famous person in Holland until a year, so it's logical you wouldn't have heard from her. Her future husband is the second of three boys to our Queen, so is the second 'heir to the throne'. But that does not matter.
Klaas Bruinsma was assasinated in 1991. They knew each other (which she admitted) in the late '80's.
So no, Bruinsma is not in jail, and not around
People are a bit shocked, but who cares, she must have been 18 or 19 back then. And no, it did not happen recently, so it's not a big a scandal as you might think.
But the connection is definitely surprising and "spectacular", and the tv shows and magazines love it. When it comes to our Royal Family, Holland is very old fashioned.
When a Royal prince want to marry, the government has to give permission. WHen the future princess has 'mob-ties', it's possible the government won't give it. When the couple does get married then, he gives up the right to the throne if his elder brother ever passes away. It's like constitution, old fashioned, royal tradition crap.
So far she denies a 'love affair', but all clues are against her. Bruinsma former bodyguard have been speeking to the media and opposes all statements she have made yet.
It might be nothing, a childish 'fling', but the media are making a big thing about it.
and altough the US has a huge mob-history (including rumoured celebrities with mob ties), it's quite new for HOlland