If this is true then nearly all of bitcoin's growth over the last 3 years can be directly attributable to Mark Karpeles, either in the form of outright price manipulation, or the running of illegal goods marketplaces.
Bitcoin, by definition, is not "centrally controlled." It doesn't matter how many coins any entity controls, there's nothing that it could do to actually break the system or remove the inherent value of bitcoin. The fact that there are thousands and thousands of miners and nodes around the world protecting the ledger (the blockchain) is what makes bitcoin so groundbreaking.