Tokyo's District Court has ruled that bitcoin is "not subject to ownership", with a judge informing a plaintiff he could not claim for bitcoins lost in the Mt Gox collapse.
Judge Masumi Kurachi stated that, due to their intangible nature and reliance on third parties, bitcoins cannot be covered under existing law.

Mark ... this kind of crap that kills Bitcoin . just like Silk road or any other Darknet market

Check more and read fully here : http://www.coindesk.com/tokyo-court-bitcoin-not-subject-to-ownership-2/