Yes, Kim "Kimble" Schmitz is a name I remember from 90's. He was quite often on TV in Germany, showing off his luxurious life-style, girls and cocktails at a pool, that sort of thing. And then he was jailed. He is indeed a convicted criminal.
The german Wikipedia has a nice overview over his former activities: http://de.wikipedia.org/wiki/Kim_Schmitz
This guy has never been a modern Robin Hood.