Janek M. aka "Gruby" is a Polishman arrested for being a gangster.http://www.warsawvoice.pl/archiwum.phtml/1249 Warsaw Voice: Poland's new Anti-Gang weapon Janek M. aka "Gruby" which means "fat" in the masculine tense in Polish, is alleged to be a member of the "Pruszków" mafia, named after the town near Warsaw which is widely considered to be the most dangerous criminal organization in Poland.http://www.warsawvoice.pl/archiwum.phtml/1404 Warsaw Voice: Polish Goodfellas He was arrested with Leszek D. (aka "Wańka"), Janusz B. ("Parasol"), Zygmunt R. ("Bolo").http://www.warsawvoice.pl/archiwum.phtml/1404 Warsaw Voice: Polish Goodfellas