I'm sorry for your loss but you can't now expect a hacker come to you admit the crime and give you the coins back i bet he anonymised himself good enought for you not to be able to trace him down.
Worth noting: A similar situation occurred within the past 30 days:
http://www.coindesk.com/how-roger-ver-hacked-what-he-did-stop-it/
Effectively, anything can be used for both beneficial and nefarious activities. Guns kill people, but also protect families. You can cut meat with a knife, or use it as a weapon. The overarching analysis must be in favor of the benefits to society outweighing the detrimental usage. As such, I see (in our current climate of Govt. spying) that the pendulum has swung in favor of needing greater anonymous utility.
