I guess the only person who can really shed light on what's happened at Cryptsy 1.5 years ago is Nicholas Mullesch aka Mullick. He supervised all coin daemons running there. The feds would like to talk to him for sure. Soon.

These are the approximate figures taken:
Bitcoin:  13,000 BTC
Litecoin:  300,000 LTC

This of course was a critical event for Cryptsy, however at the time the website was earning more than it was spending and we still have some reserves of those cryptocurrencies on hand.   The decision was made to pull from our profits to fill these wallets back up over time, thus attempting to avert complete closure of the website at that time.   This worked fine for awhile, as profits decreased due to low volume and low Bitcoin prices, we would adjust our spending accordingly.  It wasn’t until an article from Coinfire came out that contained many false accusations that things began to crumble.   The article basically caused a bank-run, and since we only had so much in reserves for those currencies problems began.  

Our current customer liabilities for BTC is around 10,000 BTC, so as you can see we would like to see the Bitcoins returned for both our users and for ourselves.

Here are the transaction details from the Bitcoin wallet:

https://www.walletexplorer.com/wallet/0c07e0bec1002bd2

As you can see,  2014-07-29 13:17:36 is when the event occurred.   A very interesting fact here, however, is that those Bitcoins have not moved once since this happened.    This gives rise to the possibility they can be recovered.   In fact, I’m offering a bounty of 1000 BTC for information which leads to the recovery of the stolen coins.
recovered.   In fact, I’m offering a bounty of 1000 BTC for information which leads to the recovery of the stolen coins.

Figuring out who owns the btc addresses that received the multiple 1000BTC transactions could lay in the small amounts that are also received on those addresses.