I saw this from the Guardian:
http://www.theguardian.com/technology/2015/sep/14/bitcoin-mt-gox-ceo-mark-karpeles-charged-embezzlingHe is alleged to have transferred money from Goxs bank account to other accounts in October 2013, where it was mainly spent on buying licenses for 3D-rendering software, according to Jiji Press. Some of the money was also allegedly used on an expensive custom-built bed, Jiji added.
Does he own a 3D rendering software company? It would only make sense if it was his company and he was laundering money through it.
He had a 3D printer.