this guy has stolen bitcoins from flexcoin  http://www.coindesk.com/bitcoin-bank-flexcoin-close-600000-bitcoin-theft/
wallet https://blockchain.info/address/1NDkevapt4SWYFEmquCDBSf7DLMTNVggdu?filter=0
look where the money comes from https://blockchain.info/address/19ujNb5HnnGdpqFHPefxxgtMdFEvRcYN5m from the same wallet