Im sorry to read about this.

The very same thing happened to me while I was at university. My best friend emptied my account, everything! Even took me into an overdraught.

I was gutted. I lost all confidence in people. She too had been taking my card and removing money over a period of time. Then one day she took the lot.

Its a very hard blow to get over. I hope you take this gut all the way, he deserves it.